diff --git a/metrics-exporter-prometheus/Cargo.toml b/metrics-exporter-prometheus/Cargo.toml
index d49bdfd2..7f37642c 100644
--- a/metrics-exporter-prometheus/Cargo.toml
+++ b/metrics-exporter-prometheus/Cargo.toml
@@ -25,7 +25,7 @@ push-gateway = ["async-runtime", "hyper/client", "tracing"]
 [dependencies]
 metrics = { version = "^0.19", path = "../metrics" }
 metrics-util = { version = "^0.13", path = "../metrics-util", default-features = false, features = ["recency", "registry", "summary"] }
-parking_lot = { version = "0.11", default-features = false }
+parking_lot = { version = "0.12", default-features = false }
 thiserror = { version = "1", default-features = false }
 quanta = { version = "0.10.0", default-features = false }
 indexmap = { version = "1", default-features = false }
diff --git a/metrics-tracing-context/Cargo.toml b/metrics-tracing-context/Cargo.toml
index 808c97cf..e61eb1d9 100644
--- a/metrics-tracing-context/Cargo.toml
+++ b/metrics-tracing-context/Cargo.toml
@@ -39,6 +39,6 @@ tracing-subscriber = { version = "0.3.1", default-features = false, features = [
 
 [dev-dependencies]
 criterion = "0.3"
-parking_lot = "0.11"
+parking_lot = "0.12"
 tracing = { version = "0.1.29", default-features = false, features = ["std"] }
 tracing-subscriber = { version = "0.3.1", default-features = false, features = ["registry"] }
diff --git a/metrics-util/Cargo.toml b/metrics-util/Cargo.toml
index 4b25a2fc..f727eaea 100644
--- a/metrics-util/Cargo.toml
+++ b/metrics-util/Cargo.toml
@@ -53,7 +53,7 @@ crossbeam-utils = { version = "0.8", default-features = false, optional = true }
 portable-atomic = { version = "0.3", optional = true }
 aho-corasick = { version = "0.7", default-features = false, optional = true, features = ["std"] }
 indexmap = { version = "1", default-features = false, optional = true }
-parking_lot = { version = "0.11", default-features = false, optional = true }
+parking_lot = { version = "0.12", default-features = false, optional = true }
 quanta = { version = "0.10.0", default-features = false, optional = true }
 sketches-ddsketch = { version = "0.2.0", default-features = false, optional = true }
 radix_trie = { version = "0.2", default-features = false, optional = true }