diff --git a/.nix/config.nix b/.nix/config.nix
index 89ae78de83..2a35b59f9b 100644
--- a/.nix/config.nix
+++ b/.nix/config.nix
@@ -49,12 +49,15 @@
 
   bundles."master".coqPackages = {
     coq.override.version = "master";
-    coq-elpi.override.version = "coq-master";
+    coq-elpi.override.version = "master";
     hierarchy-builder.override.version = "master";
     mathcomp.override.version = "master";
     mathcomp-bigenough.override.version = "1.0.1";
     mathcomp-finmap.override.version = "master";
   };
+  bundles."master".ocamlPackages = {
+    elpi.override.version = "1.19.2";
+  };
 
   ## Cachix caches to use in CI
   ## Below we list some standard ones
diff --git a/.nix/coq-nix-toolbox.nix b/.nix/coq-nix-toolbox.nix
index e9f87038bf..3ac5205c1f 100644
--- a/.nix/coq-nix-toolbox.nix
+++ b/.nix/coq-nix-toolbox.nix
@@ -1 +1 @@
-"5814f779562efc3e3c0f9bfeaea0468728e2e08b"
+"66abb687550ec2800bc1724036cfb5d9656c901c"