diff --git a/pkgs/development/libraries/esdl/default.nix b/pkgs/development/libraries/esdl/default.nix
index ccc3318ff6b9..49b72008698d 100644
--- a/pkgs/development/libraries/esdl/default.nix
+++ b/pkgs/development/libraries/esdl/default.nix
@@ -1,11 +1,11 @@
 {stdenv, fetchurl, SDL, mesa, erlang}:
 
 stdenv.mkDerivation rec {
-  name = "esdl-1.0.1";
+  name = "esdl-1.2";
 
   src = fetchurl {
     url = "mirror://sourceforge/esdl/${name}.src.tar.gz";
-    sha256 = "0zc7cmr44v10sb593dismdm5qc2v7sm3z9yh22g4r9g6asbg5z0n";
+    sha256 = "0zbnwhy2diivrrs55n96y3sfnbs6lsgz91xjaq15sfi858k9ha29";
   };
 
   buildInputs = [ erlang ];