fix nix

Author: gares

.nix/config.nix

@@ -10,7 +10,7 @@
       hierarchy-builder.override.version = "coq-elpi-2";
       hierarchy-builder-shim.job = false;
 
-      coq-elpi.override.version = "fix-synterp";
+      coq-elpi.override.version = "master";
 
       mathcomp.override.version = "master";
       mathcomp.job = true;