diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 293ec78..7a0fb79 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -33,6 +33,7 @@ jobs:
         path: 'lightning'
         ref: 'master'
         submodules: 'recursive'
+        fetch-depth: 0  # Required for pyln versions to be recognized
 
     - name: Download runtime dependencies
       run: |