diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index a9febcb..06ad80d 100644
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@@ -34,7 +34,7 @@ jobs:
       with:
         # We must fetch at least the immediate parents so that if this is
         # a pull request then we can checkout the head.
-        fetch-depth: 2
+        fetch-depth: 0
 
     # If this run was triggered by a pull request event, then checkout
     # the head of the pull request instead of the merge commit.