diff --git a/.github/workflows/mathics.yml b/.github/workflows/mathics.yml
index d709091..f1fc159 100644
--- a/.github/workflows/mathics.yml
+++ b/.github/workflows/mathics.yml
@@ -32,8 +32,6 @@ jobs:
       run: |
         # Until next Mathics3/mathics-core release is out...
         # git clone https://github.com/Mathics3/mathics-core.git
-        # Until next operator-info-from-JSON is merges
-        git clone -b operator-info-from-JSON https://github.com/Mathics3/mathics-core.git
         cd mathics-core/
         make PIP_INSTALL_OPTS='[full]'
         # pip install Mathics3[full]