diff --git a/pkgs/tools/graphics/astc-encoder/default.nix b/pkgs/tools/graphics/astc-encoder/default.nix
index a982d329f90b..cecc52b9df2d 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 = "3.3";
+  version = "3.4";
 
   src = fetchFromGitHub {
     owner = "ARM-software";
     repo = "astc-encoder";
     rev = version;
-    sha256 = "sha256-5E26QzphF5HwVTH+92S4rT3IUAp9ravT/wxsmaH9IAM=";
+    sha256 = "sha256-blOfc/H64UErjPjkdZQNp2H/Hw57RbQRFBcUo/C2b0Q=";
   };
 
   nativeBuildInputs = [ cmake ];
@@ -46,6 +46,12 @@ gccStdenv.mkDerivation rec {
     "-DCMAKE_BUILD_TYPE=Release"
   ];
 
+  # Set a fixed build year to display within help output (otherwise, it would be 1980)
+  postPatch = ''
+    substituteInPlace Source/cmake_core.cmake \
+      --replace 'string(TIMESTAMP astcencoder_YEAR "%Y")' 'set(astcencoder_YEAR "2022")'
+  '';
+
   # Link binaries into environment and provide 'astcenc' link
   postInstall = ''
     mv $out/astcenc $out/bin