diff --git a/validation/local_ping_pong_openssl/Cargo.lock b/validation/local_ping_pong_openssl/Cargo.lock
index e6d5c1e..66ea148 100644
--- a/validation/local_ping_pong_openssl/Cargo.lock
+++ b/validation/local_ping_pong_openssl/Cargo.lock
@@ -426,9 +426,9 @@ checksum = "2304e00983f87ffb38b55b444b5e3b60a884b5d30c0fca7d82fe33449bbe55ea"
 
 [[package]]
 name = "hkdf"
-version = "0.13.0-rc.5"
+version = "0.13.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cbb55385998ae66b8d2d5143c05c94b9025ab863966f0c94ce7a5fde30105092"
+checksum = "4aaa26c720c68b866f2c96ef5c1264b3e6f473fe5d4ce61cd44bbe913e553018"
 dependencies = [
  "hmac",
 ]