diff --git a/pkgs/development/libraries/haskell/ReadArgs/default.nix b/pkgs/development/libraries/haskell/ReadArgs/default.nix
index 9375eba3cd4c..4b8a513914a1 100644
--- a/pkgs/development/libraries/haskell/ReadArgs/default.nix
+++ b/pkgs/development/libraries/haskell/ReadArgs/default.nix
@@ -2,8 +2,8 @@
 
 cabal.mkDerivation (self: {
   pname = "ReadArgs";
-  version = "1.2";
-  sha256 = "0qkrg9kii15gl5pqzk63vmcs2w3clwdsxzlc5g224cwi3rnc6flp";
+  version = "1.2.1";
+  sha256 = "099gg6nq70yf2pl5ya8f083lw8x5rncnv54y2p5jlkdwfwmpmbnv";
   isLibrary = true;
   isExecutable = true;
   buildDepends = [ systemFilepath text ];