diff --git a/shell.nix b/shell.nix
index 39bd03e..a21f67f 100644
--- a/shell.nix
+++ b/shell.nix
@@ -10,7 +10,7 @@ mkShell {
     # python311Packages.pygments don't need to install, asciidoctor includes it
     rubyPackages.rbs
     rubyPackages.racc
-    rubyPackages.coderay
+    # rubyPackages.coderay
     # rubyPackages.rouge
   ];
 #  outputs = [ "start-shell" ];