diff --git a/.gitea/workflows/build-iso.yml b/.gitea/workflows/build-iso.yml
index aaea316..83dcfe8 100644
--- a/.gitea/workflows/build-iso.yml
+++ b/.gitea/workflows/build-iso.yml
@@ -14,7 +14,9 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Install clang
-        run: sudo apt install clang
+        run: |
+          sudo apt update
+          sudo apt install clang
 
       - name: Make scripts executable
         run: chmod +x ./scripts/build_c.sh ./scripts/out_to_iso.sh