diff --git a/pkgs/development/libraries/haskell/pretty-show/1.6.3.nix b/pkgs/development/libraries/haskell/pretty-show/1.6.5.nix
similarity index 86%
rename from pkgs/development/libraries/haskell/pretty-show/1.6.3.nix
rename to pkgs/development/libraries/haskell/pretty-show/1.6.5.nix
index 6979213cc29..60a191da251 100644
--- a/pkgs/development/libraries/haskell/pretty-show/1.6.3.nix
+++ b/pkgs/development/libraries/haskell/pretty-show/1.6.5.nix
@@ -2,8 +2,8 @@
 
 cabal.mkDerivation (self: {
   pname = "pretty-show";
-  version = "1.6.3";
-  sha256 = "161zhbsqa86s1gqa7ss8pimw2msdlvgjlldh6ryizc17579dfcfw";
+  version = "1.6.5";
+  sha256 = "0yn20gh2xwzvfwb9fdzxqqbbb6vvd4rlv5ancw4vc8p2kgfhwxf3";
   isLibrary = true;
   isExecutable = true;
   buildDepends = [ filepath haskellLexer ];
diff --git a/pkgs/top-level/haskell-packages.nix b/pkgs/top-level/haskell-packages.nix
index 7db34335bf4..02d55a1b6d5 100644
--- a/pkgs/top-level/haskell-packages.nix
+++ b/pkgs/top-level/haskell-packages.nix
@@ -1821,10 +1821,10 @@ let result = let callPackage = x : y : modifyPrio (newScope result.finalReturn x
   prettyclass = callPackage ../development/libraries/haskell/prettyclass {};
 
   prettyShow_1_2 = callPackage ../development/libraries/haskell/pretty-show/1.2.nix {};
-  prettyShow_1_6_3 = callPackage ../development/libraries/haskell/pretty-show/1.6.3.nix {
+  prettyShow_1_6_5 = callPackage ../development/libraries/haskell/pretty-show/1.6.5.nix {
     happy = self.happy_1_19_2;
   };
-  prettyShow = self.prettyShow_1_6_3;
+  prettyShow = self.prettyShow_1_6_5;
 
   punycode = callPackage ../development/libraries/haskell/punycode {};