diff --git a/pkgs/tools/graphics/astc-encoder/default.nix b/pkgs/tools/graphics/astc-encoder/default.nix
index e2af1494874b..9f8afe4a3bef 100644
--- a/pkgs/tools/graphics/astc-encoder/default.nix
+++ b/pkgs/tools/graphics/astc-encoder/default.nix
@@ -31,13 +31,13 @@ with rec {
 
 gccStdenv.mkDerivation rec {
   pname = "astc-encoder";
-  version = "3.6";
+  version = "4.2.0";
 
   src = fetchFromGitHub {
     owner = "ARM-software";
     repo = "astc-encoder";
     rev = version;
-    sha256 = "sha256-TzVO2xQOuE87h8j4UwkpnAaFwkvy5dZge8zDNR/mVf0=";
+    sha256 = "sha256-zE0rXCmRz3z1P1wLm8aO7iQ/Yf1TJeEZqz9fB0Shsz4=";
   };
 
   nativeBuildInputs = [ cmake ];