diff --git a/Cargo.lock b/Cargo.lock
index dbbb4e62dd..c5c4a4522a 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2405,6 +2405,7 @@ checksum = "e5274423e17b7c9fc20b6e7e208532f9b19825d82dfd615708b70edd83df41f1"
 dependencies = [
  "ahash 0.8.11",
  "allocator-api2",
+ "serde",
 ]
 
 [[package]]
@@ -3327,9 +3328,9 @@ dependencies = [
 
 [[package]]
 name = "ic-wasm"
-version = "0.7.2"
+version = "0.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a1f3f1ec63f08807d176691225de0b993e832b1fff71c631ed897df5888c7be4"
+checksum = "9742ed6640abfc3bd1c8ca82de222e907275d1e851249b13fca7588f13759fc7"
 dependencies = [
  "anyhow",
  "candid",
@@ -3476,6 +3477,7 @@ checksum = "168fb715dda47215e360912c096649d23d58bf392ac62f73919e831745e40f26"
 dependencies = [
  "equivalent",
  "hashbrown 0.14.5",
+ "serde",
 ]
 
 [[package]]
@@ -6552,9 +6554,9 @@ dependencies = [
 
 [[package]]
 name = "walrus"
-version = "0.20.3"
+version = "0.21.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2c03529cd0c4400a2449f640d2f27cd1b48c3065226d15e26d98e4429ab0adb7"
+checksum = "467611cafbc8a84834b77d2b4bb191fd2f5769752def8340407e924390c6883b"
 dependencies = [
  "anyhow",
  "gimli 0.26.2",
@@ -6671,18 +6673,18 @@ checksum = "af190c94f2773fdb3729c55b007a722abb5384da03bc0986df4c289bf5567e96"
 
 [[package]]
 name = "wasm-encoder"
-version = "0.29.0"
+version = "0.212.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "18c41dbd92eaebf3612a39be316540b8377c871cb9bde6b064af962984912881"
+checksum = "501940df4418b8929eb6d52f1aade1fdd15a5b86c92453cb696e3c906bd3fc33"
 dependencies = [
  "leb128",
 ]
 
 [[package]]
 name = "wasm-opt"
-version = "0.113.0"
+version = "0.116.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "65a2799e08026234b07b44da6363703974e75be21430cef00756bbc438c8ff8a"
+checksum = "2fd87a4c135535ffed86123b6fb0f0a5a0bc89e50416c942c5f0662c645f679c"
 dependencies = [
  "anyhow",
  "libc",
@@ -6696,9 +6698,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-opt-cxx-sys"
-version = "0.113.0"
+version = "0.116.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c8d26f86d1132245e8bcea8fac7f02b10fb885b6696799969c94d7d3c14db5e1"
+checksum = "8c57b28207aa724318fcec6575fe74803c23f6f266fce10cbc9f3f116762f12e"
 dependencies = [
  "anyhow",
  "cxx",
@@ -6708,9 +6710,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-opt-sys"
-version = "0.113.0"
+version = "0.116.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "497d069cd3420cdd52154a320b901114a20946878e2de62c670f9d906e472370"
+checksum = "8a1cce564dc768dacbdb718fc29df2dba80bd21cb47d8f77ae7e3d95ceb98cbe"
 dependencies = [
  "anyhow",
  "cc",
@@ -6733,9 +6735,17 @@ dependencies = [
 
 [[package]]
 name = "wasmparser"
-version = "0.80.2"
+version = "0.212.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "449167e2832691a1bff24cde28d2804e90e09586a448c8e76984792c44334a6b"
+checksum = "8d28bc49ba1e5c5b61ffa7a2eace10820443c4b7d1c0b144109261d14570fdf8"
+dependencies = [
+ "ahash 0.8.11",
+ "bitflags 2.5.0",
+ "hashbrown 0.14.5",
+ "indexmap 2.2.6",
+ "semver",
+ "serde",
+]
 
 [[package]]
 name = "web-sys"
diff --git a/e2e/assets/memory64/dfx.json b/e2e/assets/memory64/dfx.json
new file mode 100644
index 0000000000..6a658fd247
--- /dev/null
+++ b/e2e/assets/memory64/dfx.json
@@ -0,0 +1,14 @@
+{
+    "version": 1,
+    "canisters": {
+        "m64": {
+            "type": "custom",
+            "candid": "empty.did",
+            "wasm": "m64.wasm",
+            "build": "echo \"generated from (module (memory i64 0 0))\"",
+            "shrink": true,
+            "optimize": "Oz",
+            "gzip": true
+        }
+    }
+}
\ No newline at end of file
diff --git a/e2e/assets/memory64/empty.did b/e2e/assets/memory64/empty.did
new file mode 100644
index 0000000000..f424d81e86
--- /dev/null
+++ b/e2e/assets/memory64/empty.did
@@ -0,0 +1 @@
+service : {}
diff --git a/e2e/assets/memory64/m64.wasm b/e2e/assets/memory64/m64.wasm
new file mode 100644
index 0000000000..c4a07fdf15
Binary files /dev/null and b/e2e/assets/memory64/m64.wasm differ
diff --git a/e2e/tests-dfx/build.bash b/e2e/tests-dfx/build.bash
index cebbafae9c..a88dcfe4f7 100644
--- a/e2e/tests-dfx/build.bash
+++ b/e2e/tests-dfx/build.bash
@@ -335,3 +335,8 @@ teardown() {
 
   assert_command timeout 30s dfx build --check
 }
+
+@test "dfx build can post-process memory64 Wasm module" {
+  install_asset memory64
+  assert_command dfx build --check
+}
diff --git a/rust-toolchain.toml b/rust-toolchain.toml
index a0f945fbbb..4df24c986f 100644
--- a/rust-toolchain.toml
+++ b/rust-toolchain.toml
@@ -1,4 +1,4 @@
 [toolchain]
-channel = "1.75.0"
+channel = "1.76.0"
 components = ["rustfmt", "clippy"]
 targets = ["wasm32-unknown-unknown"]
diff --git a/src/dfx/Cargo.toml b/src/dfx/Cargo.toml
index 3750e32b20..5cb2459b4b 100644
--- a/src/dfx/Cargo.toml
+++ b/src/dfx/Cargo.toml
@@ -71,7 +71,7 @@ ic-asset.workspace = true
 ic-cdk.workspace = true
 ic-identity-hsm = { workspace = true }
 ic-utils = { workspace = true }
-ic-wasm = "0.7.0"
+ic-wasm = "0.8.0"
 icrc-ledger-types = "0.1.5"
 idl2json = "0.10.1"
 indicatif = "0.16.0"
@@ -119,7 +119,7 @@ time = { workspace = true, features = [
 tokio = { workspace = true, features = ["fs"] }
 url.workspace = true
 walkdir.workspace = true
-walrus = "0.20.1"
+walrus = "0.21.1"
 which = "4.2.5"
 ci_info = "0.14"