diff --git a/pkgs/development/libraries/haskell/certificate/default.nix b/pkgs/development/libraries/haskell/certificate/default.nix
index 0a284cd9ba59..95b990b464b4 100644
--- a/pkgs/development/libraries/haskell/certificate/default.nix
+++ b/pkgs/development/libraries/haskell/certificate/default.nix
@@ -4,8 +4,8 @@
 
 cabal.mkDerivation (self: {
   pname = "certificate";
-  version = "1.3.8";
-  sha256 = "1id3jfaisl04n1mjj9lbq3gyz8hyn3r9p9chzmfbra0pcj3vf1m0";
+  version = "1.3.9";
+  sha256 = "18g5rq7lpxmvmlnz610537w6mix6z6kxjrfj2ylbhkc81r5pn9g6";
   isLibrary = true;
   isExecutable = true;
   buildDepends = [