diff --git a/pkgs/development/libraries/haskell/pretty-show/1.6.2.nix b/pkgs/development/libraries/haskell/pretty-show/1.6.3.nix
similarity index 86%
rename from pkgs/development/libraries/haskell/pretty-show/1.6.2.nix
rename to pkgs/development/libraries/haskell/pretty-show/1.6.3.nix
index ea3b7ed27cb..6979213cc29 100644
--- a/pkgs/development/libraries/haskell/pretty-show/1.6.2.nix
+++ b/pkgs/development/libraries/haskell/pretty-show/1.6.3.nix
@@ -2,8 +2,8 @@
 
 cabal.mkDerivation (self: {
   pname = "pretty-show";
-  version = "1.6.2";
-  sha256 = "0xhxyxymdjag2xczjrda5dkjc51m5k1nanpg9dmw0gr6wjaijbnp";
+  version = "1.6.3";
+  sha256 = "161zhbsqa86s1gqa7ss8pimw2msdlvgjlldh6ryizc17579dfcfw";
   isLibrary = true;
   isExecutable = true;
   buildDepends = [ filepath haskellLexer ];
diff --git a/pkgs/top-level/haskell-packages.nix b/pkgs/top-level/haskell-packages.nix
index 5078076350d..a837314cee1 100644
--- a/pkgs/top-level/haskell-packages.nix
+++ b/pkgs/top-level/haskell-packages.nix
@@ -1782,10 +1782,10 @@ let result = let callPackage = x : y : modifyPrio (newScope result.finalReturn x
   ppm = callPackage ../development/libraries/haskell/ppm {};
 
   prettyShow_1_2 = callPackage ../development/libraries/haskell/pretty-show/1.2.nix {};
-  prettyShow_1_6_2 = callPackage ../development/libraries/haskell/pretty-show/1.6.2.nix {
+  prettyShow_1_6_3 = callPackage ../development/libraries/haskell/pretty-show/1.6.3.nix {
     happy = self.happy_1_19_2;
   };
-  prettyShow = self.prettyShow_1_6_2;
+  prettyShow = self.prettyShow_1_6_3;
 
   punycode = callPackage ../development/libraries/haskell/punycode {};