diff --git a/pkgs/development/libraries/aws-c-cal/default.nix b/pkgs/development/libraries/aws-c-cal/default.nix
index 0fa050a08f31..ec22b6c5af1b 100644
--- a/pkgs/development/libraries/aws-c-cal/default.nix
+++ b/pkgs/development/libraries/aws-c-cal/default.nix
@@ -1,14 +1,14 @@
-{ lib, stdenv, fetchFromGitHub, cmake, aws-c-common, openssl, Security }:
+{ lib, stdenv, fetchFromGitHub, cmake, aws-c-common, nix, openssl, Security }:
 
 stdenv.mkDerivation rec {
   pname = "aws-c-cal";
-  version = "0.5.18";
+  version = "0.5.19";
 
   src = fetchFromGitHub {
     owner = "awslabs";
     repo = pname;
     rev = "v${version}";
-    sha256 = "sha256-sT5ahf8MuIhqDV6RrRU+RgsLdwVUDEFWRZJpzQJOPGA=";
+    sha256 = "sha256-VEjefo+y8bizCxvJmzx+dZ1BE9eT1cR3Tkfn1eVQI/0=";
   };
 
   nativeBuildInputs = [ cmake ];
@@ -21,6 +21,10 @@ stdenv.mkDerivation rec {
     "-DBUILD_SHARED_LIBS=ON"
   ];
 
+  passthru.tests = {
+    inherit nix;
+  };
+
   meta = with lib; {
     description = "AWS Crypto Abstraction Layer ";
     homepage = "https://github.com/awslabs/aws-c-cal";