diff --git a/pkgs/development/compilers/fsharp/default.nix b/pkgs/development/compilers/fsharp/default.nix
index 963c7e2cb5c..1d795504589 100644
--- a/pkgs/development/compilers/fsharp/default.nix
+++ b/pkgs/development/compilers/fsharp/default.nix
@@ -2,7 +2,7 @@
 
 stdenv.mkDerivation rec {
   name = "fsharp-${version}";
-  version = "3.1";
+  version = "3.1.0";
 
   src = fetchgit {
     url = "https://github.com/fsharp/fsharp";