diff --git a/actions/cairn-zig-fuzz/action.yml b/actions/cairn-zig-fuzz/action.yml
index 44030ce..501b13d 100644
--- a/actions/cairn-zig-fuzz/action.yml
+++ b/actions/cairn-zig-fuzz/action.yml
@@ -52,7 +52,7 @@ runs:
   using: 'composite'
   steps:
     - name: Setup AFL++
-      uses: https://git.ts.mattnite.net/mattnite/cairn/actions/setup-afl
+      uses: https://git.ts.mattnite.net/mattnite/cairn/actions/setup-afl@main
 
     - name: Check prerequisites
       shell: sh
@@ -63,7 +63,7 @@ runs:
         echo "zig $(zig version), afl-cc found"
 
     - name: Setup Cairn CLI
-      uses: https://git.ts.mattnite.net/mattnite/cairn/actions/setup-cairn
+      uses: https://git.ts.mattnite.net/mattnite/cairn/actions/setup-cairn@main
       with:
         version: ${{ inputs.cairn_version }}
         server_url: ${{ inputs.cairn_server }}