diff --git a/pkgs/by-name/cc/cctz/package.nix b/pkgs/by-name/cc/cctz/package.nix
index a28c22d0443f..9f16f6550d1c 100644
--- a/pkgs/by-name/cc/cctz/package.nix
+++ b/pkgs/by-name/cc/cctz/package.nix
@@ -6,13 +6,13 @@
 
 stdenv.mkDerivation rec {
   pname = "cctz";
-  version = "2.4";
+  version = "2.5";
 
   src = fetchFromGitHub {
     owner = "google";
     repo = "cctz";
     rev = "v${version}";
-    sha256 = "sha256-F4h8nT1karymV16FFHC0ldSbdOOx5AMstqi4Bc5m3UQ=";
+    sha256 = "sha256-YCE0DXuOT5tCOfLlemMH7I2F8c7HEK1NEUJvtfqnCg8=";
   };
 
   makeFlags = [ "PREFIX=$(out)" ];