diff --git a/pkgs/by-name/in/inform6/package.nix b/pkgs/by-name/in/inform6/package.nix
index 9336a8f20f33..a2c51a6523b4 100644
--- a/pkgs/by-name/in/inform6/package.nix
+++ b/pkgs/by-name/in/inform6/package.nix
@@ -7,11 +7,11 @@
 
 stdenv.mkDerivation rec {
   pname = "inform6";
-  version = "6.42-r8";
+  version = "6.42-r9";
 
   src = fetchurl {
     url = "https://ifarchive.org/if-archive/infocom/compilers/inform6/source/inform-${version}.tar.gz";
-    sha256 = "sha256-Co3XNcr0LDGeEYTxIFmqTsaKm4q5VpLpVsTNnJHUX8o=";
+    sha256 = "sha256-aHYjqjdISnyUxtruDDWD0cHEOxBpvm3+TfNxtGofezQ=";
   };
 
   buildInputs = [ perl ];