diff --git a/.github/actions/determine-complexity/determine-pr-complexity.js b/.github/actions/determine-complexity/determine-pr-complexity.js
index ba58f82a5f..01756e8811 100644
--- a/.github/actions/determine-complexity/determine-pr-complexity.js
+++ b/.github/actions/determine-complexity/determine-pr-complexity.js
@@ -18,7 +18,7 @@
 async function getPRDetails(github, core, owner, repo, pull_number) {
     core.info(`Fetching PR details`);
 
-    const { data: files } = await github.pulls.listFiles({
+    const { data: files } = await github.rest.pulls.listFiles({
         owner,
         repo,
         pull_number