diff --git a/.github/workflows/ci_bindings_lua.yml b/.github/workflows/ci_bindings_lua.yml
index 2d3a0b6563ce..afa09cbad315 100644
--- a/.github/workflows/ci_bindings_lua.yml
+++ b/.github/workflows/ci_bindings_lua.yml
@@ -43,7 +43,8 @@ permissions:
 
 jobs:
   test:
-    runs-on: ubuntu-latest
+    # Ubuntu 26.04's lua-busted installs Lua 5.1, which opendal-lua doesn't support.
+    runs-on: ubuntu-24.04
 
     steps:
       - uses: actions/checkout@v7