diff --git a/Cargo.lock b/Cargo.lock
index d0ba90489e..7c483852d5 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -3419,9 +3419,9 @@ dependencies = [
 
 [[package]]
 name = "proptest"
-version = "1.4.0"
+version = "1.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "31b476131c3c86cb68032fdc5cb6d5a1045e3e42d96b69fa599fd77701e1f5bf"
+checksum = "b4c2511913b88df1637da85cc8d96ec8e43a3f8bb8ccb71ee1ac240d6f3df58d"
 dependencies = [
  "bit-set",
  "bit-vec",
diff --git a/Cargo.toml b/Cargo.toml
index 5705f48c9e..aebcd2fd44 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -112,7 +112,7 @@ wabt = "0.10.0"
 wasm-bindgen-test = "0.3.24"
 which = "5.0.0"
 strip-ansi-escapes = "0.2.0"
-proptest = "1.4.0"
+proptest = "1.5.0"
 hex-literal = "0.4.1"
 
 # Light client support: