diff --git a/Cargo.lock b/Cargo.lock
index ace9629..0fb3c90 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -736,9 +736,9 @@ 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 b81883d..fdba8af 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -44,7 +44,7 @@ criterion = "0.5"
 hex = "0.4.3"
 proptest-derive = "0.4"
 lazy_static = "1.5"
-proptest = "1.4"
+proptest = "1.5"
 rand = "0.8"
 rand_chacha = "0.3"
 serde_json = "1.0"