diff --git a/pkgs/tools/security/radamsa/default.nix b/pkgs/tools/security/radamsa/default.nix
index 3a6c09b9291..3126dd2b4fa 100644
--- a/pkgs/tools/security/radamsa/default.nix
+++ b/pkgs/tools/security/radamsa/default.nix
@@ -2,11 +2,11 @@
 
 stdenv.mkDerivation rec {
   name = "radamsa-${version}";
-  version = "0.4";
+  version = "0.5";
 
   src = fetchurl {
-    url = "http://haltp.org/download/${name}.tar.gz";
-    sha256 = "1xs9dsrq6qrf104yi9x21scpr73crfikbi8q9njimiw5c1y6alrv";
+    url = "https://github.com/aoh/radamsa/releases/download/v${version}/${name}.tar.gz";
+    sha256 = "1d2chp45fbdb2v5zpsx6gh3bv8fhcjv0zijz10clcznadnm8c6p2";
   };
 
   patchPhase = ''