diff --git a/pkgs/development/libraries/haskell/gamma/default.nix b/pkgs/development/libraries/haskell/gamma/default.nix
index 7a068a25eeed..2853fbca7685 100755
--- a/pkgs/development/libraries/haskell/gamma/default.nix
+++ b/pkgs/development/libraries/haskell/gamma/default.nix
@@ -2,8 +2,8 @@
 
 cabal.mkDerivation (self: {
   pname = "gamma";
-  version = "0.9.0.1";
-  sha256 = "02s9m2vlrnfg26c7921x60xxmawzzk27y3czcnvs8hlk01mb1xv7";
+  version = "0.9.0.2";
+  sha256 = "09z4m0qsf1aa2al7x3gl7z3xy6r4m0xqhnz8b917dxa104zw6flq";
   buildDepends = [ continuedFractions converge vector ];
   meta = {
     homepage = "https://github.com/mokus0/gamma";