diff --git a/contract-address/Cargo.toml b/contract-address/Cargo.toml
index 83cd3ed13..8b4f05682 100644
--- a/contract-address/Cargo.toml
+++ b/contract-address/Cargo.toml
@@ -11,7 +11,7 @@ edition = "2018"
 readme = "README.md"
 
 [dependencies]
-ethereum-types = { version = "0.8", path = "../ethereum-types" }
+ethereum-types = { version = "0.8.0", path = "../ethereum-types" }
 rlp = { version = "0.4", path = "../rlp" }
 keccak-hash = { version = "0.4", path = "../keccak-hash", default-features = false }
 
diff --git a/ethbloom/Cargo.toml b/ethbloom/Cargo.toml
index 829e2ac73..b65c88813 100644
--- a/ethbloom/Cargo.toml
+++ b/ethbloom/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "ethbloom"
-version = "0.8.0"
+version = "0.8.1"
 authors = ["Parity Technologies <admin@parity.io>"]
 description = "Ethereum bloom filter"
 license = "MIT"
@@ -10,16 +10,16 @@ repository = "https://github.com/paritytech/parity-common"
 edition = "2018"
 
 [dependencies]
-tiny-keccak = "1.5"
-crunchy = { version = "0.2", default-features = false, features = ["limit_256"] }
+tiny-keccak = "1.5.0"
+crunchy = { version = "0.2.2", default-features = false, features = ["limit_256"] }
 fixed-hash = { path = "../fixed-hash", version = "0.5", default-features = false }
 impl-serde = { path = "../primitive-types/impls/serde", version = "0.2", default-features = false, optional = true }
 impl-rlp = { path = "../primitive-types/impls/rlp", version = "0.2", default-features = false }
 
 [dev-dependencies]
-criterion = "0.3"
-rand = "0.7"
-hex-literal = "0.2"
+criterion = "0.3.0"
+rand = "0.7.2"
+hex-literal = "0.2.1"
 
 [features]
 default = ["std", "serialize", "libc", "rustc-hex"]
diff --git a/ethereum-types/Cargo.toml b/ethereum-types/Cargo.toml
index ae5550d23..eb1a85e20 100644
--- a/ethereum-types/Cargo.toml
+++ b/ethereum-types/Cargo.toml
@@ -16,7 +16,7 @@ impl-serde = { path = "../primitive-types/impls/serde", version = "0.2", default
 impl-rlp = { path = "../primitive-types/impls/rlp", version = "0.2", default-features = false }
 
 [dev-dependencies]
-serde_json = "1.0"
+serde_json = "1.0.41"
 
 [features]
 default = ["std", "serialize"]
diff --git a/fixed-hash/Cargo.toml b/fixed-hash/Cargo.toml
index e494fedd2..8e1bcfb16 100644
--- a/fixed-hash/Cargo.toml
+++ b/fixed-hash/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "fixed-hash"
-version = "0.5.0"
+version = "0.5.1"
 authors = ["Parity Technologies <admin@parity.io>"]
 license = "MIT"
 homepage = "https://github.com/paritytech/parity-common"
@@ -14,17 +14,17 @@ edition = "2018"
 features = ["quickcheck", "api-dummy"]
 
 [dependencies]
-rand = { version = "0.7", optional = true, default-features = false }
-rustc-hex = { version = "2.0", optional = true, default-features = false }
-quickcheck = { version = "0.9", optional = true }
-byteorder = { version = "1.2", optional = true, default-features = false }
+byteorder = { version = "1.3.2", optional = true, default-features = false }
+quickcheck = { version = "0.9.0", optional = true }
+rand = { version = "0.7.2", optional = true, default-features = false }
+rustc-hex = { version = "2.0.1", optional = true, default-features = false }
 static_assertions = "1.0.0"
 
 [dev-dependencies]
 rand_xorshift = "0.2.0"
 
 [target.'cfg(not(target_os = "unknown"))'.dependencies]
-libc = { version = "0.2", optional = true, default-features = false }
+libc = { version = "0.2.65", optional = true, default-features = false }
 
 [features]
 default = ["std", "libc", "rand", "rustc-hex", "byteorder"]
diff --git a/keccak-hash/Cargo.toml b/keccak-hash/Cargo.toml
index 365ea5805..d90da7964 100644
--- a/keccak-hash/Cargo.toml
+++ b/keccak-hash/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "keccak-hash"
-version = "0.4.0"
+version = "0.4.1"
 description = "`keccak-hash` is a set of utility functions to facilitate working with Keccak hashes (256/512 bits long)."
 authors = ["Parity Technologies <admin@parity.io>"]
 repository = "https://github.com/paritytech/parity-common"
@@ -9,11 +9,11 @@ license = "GPL-3.0"
 edition = "2018"
 
 [dependencies]
-tiny-keccak = "1.4"
+tiny-keccak = "1.5.0"
 primitive-types = { path = "../primitive-types", version = "0.6", default-features = false }
 
 [dev-dependencies]
-tempdir = "0.3"
+tempdir = "0.3.7"
 
 [features]
 default = ["std"]
diff --git a/kvdb-memorydb/Cargo.toml b/kvdb-memorydb/Cargo.toml
index 22312e8c0..4ee909d4a 100644
--- a/kvdb-memorydb/Cargo.toml
+++ b/kvdb-memorydb/Cargo.toml
@@ -8,5 +8,5 @@ license = "GPL-3.0"
 edition = "2018"
 
 [dependencies]
-parking_lot = "0.9"
+parking_lot = "0.9.0"
 kvdb = { version = "0.1", path = "../kvdb" }
diff --git a/kvdb-rocksdb/Cargo.toml b/kvdb-rocksdb/Cargo.toml
index 76b2ed9ea..cda3cc24b 100644
--- a/kvdb-rocksdb/Cargo.toml
+++ b/kvdb-rocksdb/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "kvdb-rocksdb"
-version = "0.1.5"
+version = "0.1.6"
 authors = ["Parity Technologies <admin@parity.io>"]
 repository = "https://github.com/paritytech/parity-common"
 description = "kvdb implementation backed by rocksDB"
@@ -8,16 +8,16 @@ license = "GPL-3.0"
 edition = "2018"
 
 [dependencies]
-elastic-array = "0.10"
+elastic-array = "0.10.2"
 fs-swap = "0.2.4"
-interleaved-ordered = "0.1.0"
+interleaved-ordered = "0.1.1"
 kvdb = { version = "0.1", path = "../kvdb" }
-log = "0.4"
-num_cpus = "1.10"
-parking_lot = "0.9"
-regex = "1.3"
-parity-rocksdb = "0.5"
+log = "0.4.8"
+num_cpus = "1.10.1"
+parking_lot = "0.9.0"
+regex = "1.3.1"
+parity-rocksdb = "0.5.1"
 
 [dev-dependencies]
-tempdir = "0.3"
-ethereum-types = { version = "0.8", path = "../ethereum-types" }
+tempdir = "0.3.7"
+ethereum-types = { version = "0.8.0", path = "../ethereum-types" }
diff --git a/kvdb-web/Cargo.toml b/kvdb-web/Cargo.toml
index 0774f586d..aaf237da8 100644
--- a/kvdb-web/Cargo.toml
+++ b/kvdb-web/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "kvdb-web"
-version = "0.1.0"
+version = "0.1.1"
 authors = ["Parity Technologies <admin@parity.io>"]
 repository = "https://github.com/paritytech/parity-common"
 description = "A key-value database for use in browsers"
@@ -9,16 +9,16 @@ license = "GPL-3.0"
 edition = "2018"
 
 [dependencies]
-wasm-bindgen = "0.2.49"
-js-sys = "0.3.26"
+wasm-bindgen = "0.2.51"
+js-sys = "0.3.28"
 kvdb = { version = "0.1", path = "../kvdb" }
 kvdb-memorydb = { version = "0.1", path = "../kvdb-memorydb" }
-futures-preview = "0.3.0-alpha.18"
+futures-preview = "0.3.0-alpha.19"
 log = "0.4.8"
-send_wrapper = "0.2.0"
+send_wrapper = "0.3.0"
 
 [dependencies.web-sys]
-version = "0.3.26"
+version = "0.3.28"
 features = [
 	'console',
 	'Window',
@@ -38,6 +38,6 @@ features = [
 
 [dev-dependencies]
 wasm-bindgen-test = "0.2.49"
-futures-preview = { version = "0.3.0-alpha.18", features = ['compat'] }
+futures-preview = { version = "0.3.0-alpha.19", features = ['compat'] }
 futures01 = { package = "futures", version = "0.1" }
 console_log = "0.1.2"
diff --git a/kvdb/Cargo.toml b/kvdb/Cargo.toml
index e0306dfe2..db7badb98 100644
--- a/kvdb/Cargo.toml
+++ b/kvdb/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "kvdb"
-version = "0.1.0"
+version = "0.1.1"
 authors = ["Parity Technologies <admin@parity.io>"]
 repository = "https://github.com/paritytech/parity-common"
 description = "Generic key-value trait"
@@ -8,5 +8,5 @@ license = "GPL-3.0"
 edition = "2018"
 
 [dependencies]
-elastic-array = "0.10"
+elastic-array = "0.10.2"
 bytes = { package = "parity-bytes", version = "0.1", path = "../parity-bytes" }
diff --git a/parity-bytes/Cargo.toml b/parity-bytes/Cargo.toml
index 38be22ced..e49adce31 100644
--- a/parity-bytes/Cargo.toml
+++ b/parity-bytes/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "parity-bytes"
-version = "0.1.0"
+version = "0.1.1"
 authors = ["Parity Technologies <admin@parity.io>"]
 repository = "https://github.com/paritytech/parity-common"
 description = "byte utilities for Parity"
diff --git a/parity-crypto/Cargo.toml b/parity-crypto/Cargo.toml
index a4f61c5fe..c91abd777 100644
--- a/parity-crypto/Cargo.toml
+++ b/parity-crypto/Cargo.toml
@@ -14,30 +14,30 @@ harness = false
 required-features = ["publickey"]
 
 [dependencies]
-tiny-keccak = "1.4"
+tiny-keccak = "1.5.0"
+scrypt = { version = "0.2.0", default-features = false }
 parity-secp256k1 = { version = "0.7.0", optional = true }
 ethereum-types = { version = "0.8.0", optional = true }
 lazy_static = { version = "1.0", optional = true }
-scrypt = { version = "0.2", default-features = false }
 ripemd160 = "0.8.0"
 sha2 = "0.8.0"
-digest = "0.8"
-hmac = "0.7"
+digest = "0.8.1"
+hmac = "0.7.1"
 aes = "0.3.2"
 aes-ctr = "0.3.0"
 block-modes = "0.3.3"
 pbkdf2 = "0.3.0"
+subtle = "2.2.1"
+zeroize = { version = "1.0.0", default-features = false }
 rand = "0.7.2"
 rustc-hex = "2.0"
-subtle = "2.1"
-zeroize = "0.9.1"
 
 [dev-dependencies]
-criterion = "0.2"
-hex-literal = "0.2"
+criterion = "0.3.0"
+hex-literal = "0.2.1"
 
 [features]
 default = []
 # public key crypto utils
 # moved from ethkey module in parity ethereum repository
-publickey = ["parity-secp256k1", "lazy_static", "ethereum-types"]
\ No newline at end of file
+publickey = ["parity-secp256k1", "lazy_static", "ethereum-types"]
diff --git a/parity-path/Cargo.toml b/parity-path/Cargo.toml
index b19b176c4..a4096fa73 100644
--- a/parity-path/Cargo.toml
+++ b/parity-path/Cargo.toml
@@ -8,4 +8,4 @@ license = "GPL-3.0"
 edition = "2018"
 
 [dependencies]
-home = "0.5"
+home = "0.5.1"
diff --git a/parity-util-mem/Cargo.toml b/parity-util-mem/Cargo.toml
index a73d23c0a..cf3dab6f5 100644
--- a/parity-util-mem/Cargo.toml
+++ b/parity-util-mem/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "parity-util-mem"
-version = "0.2.0"
+version = "0.2.1"
 authors = ["Parity Technologies <admin@parity.io>"]
 repository = "https://github.com/paritytech/parity-common"
 description = "Collection of memory related utilities"
@@ -8,27 +8,27 @@ license = "GPL-3.0"
 edition = "2018"
 
 [dependencies]
-cfg-if = "0.1.6"
-malloc_size_of_derive = "0.1.0"
-dlmalloc = { version = "0.1", features = ["global"], optional = true }
-wee_alloc = { version = "0.4", optional = true }
+cfg-if = "0.1.10"
+malloc_size_of_derive = "0.1.1"
+dlmalloc = { version = "0.1.3", features = ["global"], optional = true }
+wee_alloc = { version = "0.4.5", optional = true }
 # from https://github.com/microsoft/mimalloc:
 # mimalloc can be built in secure mode,
 # adding guard pages, randomized allocation, encrypted free lists, etc.
 # to protect against various heap vulnerabilities.
 # The performance penalty is only around 3% on average over our benchmarks.
-mimallocator = { version = "0.1", features = ["secure"], optional = true }
-mimalloc-sys = { version = "0.1", optional = true }
+mimallocator = { version = "0.1.3", features = ["secure"], optional = true }
+mimalloc-sys = { version = "0.1.6", optional = true }
 
-elastic-array = { version = "0", optional = true }
-ethereum-types = { version = "0", optional = true }
-parking_lot = { version = "0", optional = true }
+elastic-array = { version = "0.10.2", optional = true }
+ethereum-types = { version = "0.8.0", optional = true, path = "../ethereum-types" }
+parking_lot = { version = "0.9.0", optional = true }
 
-[target.'cfg(target_os = "windows")'.dependencies.winapi]
-version = "0.3.4"
+[target.'cfg(target_os = "windows")'.dependencies]
+winapi = "0.3.8"
 
 [target.'cfg(not(target_os = "windows"))'.dependencies.jemallocator]
-version = "0.1"
+version = "0.3.2"
 optional = true
 
 [features]
diff --git a/plain_hasher/Cargo.toml b/plain_hasher/Cargo.toml
index 2228b4a91..2a7f94989 100644
--- a/plain_hasher/Cargo.toml
+++ b/plain_hasher/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "plain_hasher"
 description = "Hasher for 32-byte keys."
-version = "0.2.1"
+version = "0.2.2"
 authors = ["Parity Technologies <admin@parity.io>"]
 license = "MIT"
 keywords = ["hash", "hasher"]
@@ -10,10 +10,10 @@ categories = ["no-std"]
 edition = "2018"
 
 [dependencies]
-crunchy = { version = "0.2", default-features = false }
+crunchy = { version = "0.2.2", default-features = false }
 
 [dev-dependencies]
-criterion = "0.3"
+criterion = "0.3.0"
 
 [features]
 default = ["std"]
diff --git a/primitive-types/Cargo.toml b/primitive-types/Cargo.toml
index a73b00644..46fa7317e 100644
--- a/primitive-types/Cargo.toml
+++ b/primitive-types/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "primitive-types"
-version = "0.6.0"
+version = "0.6.1"
 authors = ["Parity Technologies <admin@parity.io>"]
 license = "Apache-2.0/MIT"
 homepage = "https://github.com/paritytech/parity-common"
@@ -8,7 +8,7 @@ description = "Primitive types shared by Ethereum and Substrate"
 
 [dependencies]
 fixed-hash = { version = "0.5", path = "../fixed-hash", default-features = false }
-uint = { version = "0.8", path = "../uint", default-features = false }
+uint = { version = "0.8.1", path = "../uint", default-features = false }
 impl-serde = { version = "0.2.1", path = "impls/serde", default-features = false, optional = true }
 impl-codec = { version = "0.4.1", path = "impls/codec", default-features = false, optional = true }
 impl-rlp = { version = "0.2", path = "impls/rlp", default-features = false, optional = true }
diff --git a/primitive-types/impls/codec/Cargo.toml b/primitive-types/impls/codec/Cargo.toml
index cc35994f1..d4527aa48 100644
--- a/primitive-types/impls/codec/Cargo.toml
+++ b/primitive-types/impls/codec/Cargo.toml
@@ -1,13 +1,13 @@
 [package]
 name = "impl-codec"
-version = "0.4.1"
+version = "0.4.2"
 authors = ["Parity Technologies <admin@parity.io>"]
 license = "Apache-2.0/MIT"
 homepage = "https://github.com/paritytech/parity-common"
 description = "Parity Codec serialization support for uint and fixed hash."
 
 [dependencies]
-parity-scale-codec = { version = "1.0.3", default-features = false }
+parity-scale-codec = { version = "1.0.6", default-features = false }
 
 [features]
 default = ["std"]
diff --git a/primitive-types/impls/serde/Cargo.toml b/primitive-types/impls/serde/Cargo.toml
index 8f2048c9f..0e2342f34 100644
--- a/primitive-types/impls/serde/Cargo.toml
+++ b/primitive-types/impls/serde/Cargo.toml
@@ -8,12 +8,12 @@ homepage = "https://github.com/paritytech/parity-common"
 description = "Serde serialization support for uint and fixed hash."
 
 [dependencies]
-serde = "1.0"
+serde = "1.0.101"
 
 [dev-dependencies]
 criterion = "0.3.0"
-serde_derive = "1.0"
-serde_json = "1.0"
+serde_derive = "1.0.101"
+serde_json = "1.0.41"
 uint = "0.8.1"
 
 [[bench]]
diff --git a/rlp/Cargo.toml b/rlp/Cargo.toml
index 83900e213..0fd6e9b5b 100644
--- a/rlp/Cargo.toml
+++ b/rlp/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "rlp"
-version = "0.4.2"
+version = "0.4.3"
 description = "Recursive-length prefix encoding, decoding, and compression"
 repository = "https://github.com/paritytech/parity-common"
 license = "MIT/Apache-2.0"
@@ -8,11 +8,11 @@ authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 
 [dependencies]
-rustc-hex = { version = "2.0", default-features = false }
+rustc-hex = { version = "2.0.1", default-features = false }
 
 [dev-dependencies]
-criterion = "0.3"
-hex-literal = "0.2"
+criterion = "0.3.0"
+hex-literal = "0.2.1"
 primitive-types = { path = "../primitive-types", version = "0.6", features = ["impl-rlp"] }
 
 [features]
diff --git a/trace-time/Cargo.toml b/trace-time/Cargo.toml
index 5dad32a52..f1ec6e9a1 100644
--- a/trace-time/Cargo.toml
+++ b/trace-time/Cargo.toml
@@ -1,11 +1,11 @@
 [package]
 name = "trace-time"
 description = "Easily trace time to execute a scope."
-version = "0.1.1"
+version = "0.1.2"
 authors = ["Parity Technologies <admin@parity.io>"]
 repository = "https://github.com/paritytech/parity-common"
 license = "GPL-3.0"
 edition = "2018"
 
 [dependencies]
-log = "0.4"
+log = "0.4.8"
diff --git a/transaction-pool/Cargo.toml b/transaction-pool/Cargo.toml
index fb442756c..844607efa 100644
--- a/transaction-pool/Cargo.toml
+++ b/transaction-pool/Cargo.toml
@@ -1,16 +1,16 @@
 [package]
 description = "Generic transaction pool."
 name = "transaction-pool"
-version = "2.0.1"
+version = "2.0.2"
 license = "GPL-3.0"
 authors = ["Parity Technologies <admin@parity.io>"]
 repository = "https://github.com/paritytech/parity-common"
 edition = "2018"
 
 [dependencies]
-log = "0.4"
-smallvec = "0.6"
+log = "0.4.8"
+smallvec = "0.6.10"
 trace-time = { path = "../trace-time", version = "0.1" }
 
 [dev-dependencies]
-ethereum-types = { version = "0.8", path = "../ethereum-types" }
+ethereum-types = { version = "0.8.0", path = "../ethereum-types" }
diff --git a/triehash/Cargo.toml b/triehash/Cargo.toml
index ff2133d13..6342f7d03 100644
--- a/triehash/Cargo.toml
+++ b/triehash/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "triehash"
-version = "0.8.0"
+version = "0.8.1"
 authors = ["Parity Technologies <admin@parity.io>"]
 description = "In-memory patricia trie operations"
 repository = "https://github.com/paritytech/parity-common"
@@ -8,16 +8,16 @@ license = "GPL-3.0"
 edition = "2018"
 
 [dependencies]
-hash-db = "0.15"
+hash-db = "0.15.2"
 rlp = { version = "0.4", path = "../rlp" }
 
 [dev-dependencies]
-criterion = "0.3"
-keccak-hasher = "0.15"
-ethereum-types = { version = "0.8", path = "../ethereum-types" }
-tiny-keccak = "1.5"
-trie-standardmap = "0.15"
-hex-literal = "0.2"
+criterion = "0.3.0"
+keccak-hasher = "0.15.2"
+ethereum-types = { version = "0.8.0", path = "../ethereum-types" }
+tiny-keccak = "1.5.0"
+trie-standardmap = "0.15.2"
+hex-literal = "0.2.1"
 
 [[bench]]
 name = "triehash"
diff --git a/uint/Cargo.toml b/uint/Cargo.toml
index cf6a88d03..3a61567a6 100644
--- a/uint/Cargo.toml
+++ b/uint/Cargo.toml
@@ -4,21 +4,23 @@ homepage = "http://parity.io"
 repository = "https://github.com/paritytech/parity-common"
 license = "MIT/Apache-2.0"
 name = "uint"
-version = "0.8.1"
+version = "0.8.2"
 authors = ["Parity Technologies <admin@parity.io>"]
 readme = "README.md"
 edition = "2018"
 
 [dependencies]
-byteorder = { version = "1", default-features = false }
-rustc-hex = { version = "2.0", default-features = false }
-quickcheck = { version = "0.6", optional = true }
-crunchy = { version = "0.2", default-features = true }
+byteorder = { version = "1.3.2", default-features = false }
+crunchy = { version = "0.2.2", default-features = false }
+qc = { package = "quickcheck", version = "0.9.0", optional = true }
+rand = { version = "0.7.2", default-features = false, optional = true }
+rustc-hex = { version = "2.0.1", default-features = false }
 static_assertions = "1.0.0"
 
 [features]
 default = ["std"]
 std = ["byteorder/std", "rustc-hex/std", "crunchy/std"]
+quickcheck = ["qc", "rand"]
 
 [[example]]
 name = "modular"
@@ -28,11 +30,11 @@ name = "uint_tests"
 required-features = ["std"]
 
 [dev-dependencies]
-criterion = "0.2.11"
-num-bigint = "0.2"
+criterion = "0.3.0"
+num-bigint = "0.2.3"
 
 [target.'cfg(unix)'.dev-dependencies]
-rug = { version = "1.4", default-features = false, features = ["integer"] }
+rug = { version = "1.6.0", default-features = false, features = ["integer"] }
 
 [[bench]]
 name = "bigint"
diff --git a/uint/src/lib.rs b/uint/src/lib.rs
index 1ef540d85..e72c32d5f 100644
--- a/uint/src/lib.rs
+++ b/uint/src/lib.rs
@@ -23,7 +23,11 @@ pub use rustc_hex;
 
 #[cfg(feature="quickcheck")]
 #[doc(hidden)]
-pub use quickcheck;
+pub use qc;
+
+#[cfg(feature="quickcheck")]
+#[doc(hidden)]
+pub use rand;
 
 #[doc(hidden)]
 pub use static_assertions;
diff --git a/uint/src/uint.rs b/uint/src/uint.rs
index 49dfcf07f..274cc529c 100644
--- a/uint/src/uint.rs
+++ b/uint/src/uint.rs
@@ -1576,11 +1576,12 @@ macro_rules! impl_std_for_uint {
 #[doc(hidden)]
 macro_rules! impl_quickcheck_arbitrary_for_uint {
 	($uint: ty, $n_bytes: tt) => {
-		impl $crate::quickcheck::Arbitrary for $uint {
-			fn arbitrary<G: $crate::quickcheck::Gen>(g: &mut G) -> Self {
+		impl $crate::qc::Arbitrary for $uint {
+			fn arbitrary<G: $crate::qc::Gen>(g: &mut G) -> Self {
 				let mut res = [0u8; $n_bytes];
 
-				let p = g.next_f64();
+				use $crate::rand::Rng;
+				let p: f64 = $crate::rand::rngs::OsRng.gen();
 				// make it more likely to generate smaller numbers that
 				// don't use up the full $n_bytes
 				let range =
diff --git a/uint/tests/uint_tests.rs b/uint/tests/uint_tests.rs
index 7f36b6a65..0dedc0723 100644
--- a/uint/tests/uint_tests.rs
+++ b/uint/tests/uint_tests.rs
@@ -1102,7 +1102,7 @@ pub mod laws {
 	macro_rules! uint_laws {
 		($mod_name:ident, $uint_ty:ident) => {
 			mod $mod_name {
-				use quickcheck::{TestResult, quickcheck};
+				use qc::{TestResult, quickcheck};
 				use super::$uint_ty;
 
 				quickcheck! {