diff --git a/pkgs/development/libraries/haskell/certificate/default.nix b/pkgs/development/libraries/haskell/certificate/default.nix
index 41646034aa0..09d44e07222 100644
--- a/pkgs/development/libraries/haskell/certificate/default.nix
+++ b/pkgs/development/libraries/haskell/certificate/default.nix
@@ -2,8 +2,8 @@
 
 cabal.mkDerivation (self: {
   pname = "certificate";
-  version = "0.9.1";
-  sha256 = "0hq9a0vz72kk1n3hdza36rji8vc95y667iwcsmsh5habyh6q8228";
+  version = "0.9.3";
+  sha256 = "1gg26d1arf588zjhdzs8r26k40v6m679l8k2vw28l8j3q5m11p71";
   isLibrary = true;
   isExecutable = true;
   buildDepends = [ asn1Data base64Bytestring mtl time ];