diff --git a/nix/tools/tests.nix b/nix/tools/tests.nix
index 9f5dc2e2b6..e6dffb9d71 100644
--- a/nix/tools/tests.nix
+++ b/nix/tools/tests.nix
@@ -28,7 +28,10 @@ let
         withEnv = postgrest.env;
       }
       ''
-        ${withTools.withPg} ${cabal-install}/bin/cabal v2-run ${devCabalOptions} \
+        ${withTools.withSlowPgrst} \
+        ${withTools.withPg} \
+        ${withTools.withSlowPg} \
+        ${cabal-install}/bin/cabal v2-run ${devCabalOptions} \
           test:spec -- "''${_arg_leftovers[@]}"
       '';