diff --git a/pkgs/development/libraries/aws-c-cal/default.nix b/pkgs/development/libraries/aws-c-cal/default.nix
index e7f0c0854db..40e8a5eb54c 100644
--- a/pkgs/development/libraries/aws-c-cal/default.nix
+++ b/pkgs/development/libraries/aws-c-cal/default.nix
@@ -2,13 +2,13 @@
 
 stdenv.mkDerivation rec {
   pname = "aws-c-cal";
-  version = "0.5.14";
+  version = "0.5.17";
 
   src = fetchFromGitHub {
     owner = "awslabs";
     repo = pname;
     rev = "v${version}";
-    sha256 = "sha256-+hWiDlL0GVVmMajoC+hfyvT4rm16RoAWhUr04B8JZts=";
+    sha256 = "sha256-peaoTv2TLqtHScfnCPMNbE6fhUTKfRe1ZzuBsr/rpz0=";
   };
 
   nativeBuildInputs = [ cmake ];