diff --git a/pkgs/development/libraries/cctz/default.nix b/pkgs/development/libraries/cctz/default.nix
index 0b945c8c5990..c0f8a58a18d9 100644
--- a/pkgs/development/libraries/cctz/default.nix
+++ b/pkgs/development/libraries/cctz/default.nix
@@ -2,13 +2,13 @@
 
 stdenv.mkDerivation rec {
   pname = "cctz";
-  version = "2.3";
+  version = "2.4";
 
   src = fetchFromGitHub {
     owner = "google";
     repo = "cctz";
     rev = "v${version}";
-    sha256 = "0254xfwscfkjc3fbvx6qgifr3pwkc2rb03z8pbvvqy098di9alhr";
+    sha256 = "sha256-F4h8nT1karymV16FFHC0ldSbdOOx5AMstqi4Bc5m3UQ=";
   };
 
   makeFlags = [ "PREFIX=$(out)" ];