diff --git a/.github/workflows/osx.yml b/.github/workflows/osx.yml
index 82feb3523..ef920051d 100644
--- a/.github/workflows/osx.yml
+++ b/.github/workflows/osx.yml
@@ -29,8 +29,8 @@ jobs:
     - name: Install Mathics3 with full Python dependencies
       run: |
         # We can comment out after next Mathics-Scanner release
-        # python -m pip install -e git+https://github.com/Mathics3/mathics-scanner#egg=Mathics-Scanner[full]
-        python -m pip install Mathics-Scanner
+        python -m pip install -e git+https://github.com/Mathics3/mathics-scanner#egg=Mathics-Scanner[full]
+        # python -m pip install Mathics-Scanner[full]
         make develop-full
     - name: Test Mathics3
       run: |
diff --git a/.github/workflows/ubuntu.yml b/.github/workflows/ubuntu.yml
index 2f6a24960..3d72f36e7 100644
--- a/.github/workflows/ubuntu.yml
+++ b/.github/workflows/ubuntu.yml
@@ -25,8 +25,8 @@ jobs:
       run: |
         python -m pip install --upgrade pip
         # We can comment out after next Mathics-Scanner release
-        # python -m pip install -e git+https://github.com/Mathics3/mathics-scanner#egg=Mathics-Scanner[full]
-        python -m pip install Mathics-Scanner
+        python -m pip install -e git+https://github.com/Mathics3/mathics-scanner#egg=Mathics-Scanner[full]
+        # python -m pip install Mathics-Scanner[full]
         make develop-full
     - name: Test Mathics
       run: |
diff --git a/.github/workflows/windows.yml b/.github/workflows/windows.yml
index 57eee3d90..0b1e451bd 100755
--- a/.github/workflows/windows.yml
+++ b/.github/workflows/windows.yml
@@ -34,8 +34,8 @@ jobs:
     - name: Install Mathics3 with Python dependencies
       run: |
         # We can comment out after next Mathics-Scanner release
-        # python -m pip install -e git+https://github.com/Mathics3/mathics-scanner#egg=Mathics-Scanner[full]
-        python -m pip install Mathics-Scanner
+        python -m pip install -e git+https://github.com/Mathics3/mathics-scanner#egg=Mathics-Scanner[full]
+        # python -m pip install Mathics-Scanner[full]
         make develop-full
     - name: Test Mathics3
       # Limit pip install to a basic install *without* full dependencies.