diff --git a/.github/workflows/activation.yml b/.github/workflows/activation.yml
index 76eab01..6b37de2 100644
--- a/.github/workflows/activation.yml
+++ b/.github/workflows/activation.yml
@@ -10,7 +10,7 @@ jobs:
       id: getManualLicenseFile
       uses: webbertakken/unity-request-manual-activation-file@v1.1
       with:
-        unityVersion: 2020.1.7f1
+        unityVersion: 2019.3.13f1
 # Upload artifact (Unity_v20XX.X.XXXX.alf)
     - name: Expose as artifact
       uses: actions/upload-artifact@v1