diff --git a/.github/workflows/php-unit-on-pr.yml b/.github/workflows/php-unit-on-pr.yml
index 84b8b4f..53fa865 100644
--- a/.github/workflows/php-unit-on-pr.yml
+++ b/.github/workflows/php-unit-on-pr.yml
@@ -69,6 +69,9 @@ jobs:
         shell: bash
         run: npm ci
 
+      - name: Install SVN
+        run: sudo apt-get update && sudo apt-get install -y subversion
+
       # Prepare test environment
       - name: Prepare test environment
         run: |