diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 69b86a4..212fe03 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -21,7 +21,7 @@ jobs:
         uses: actions/checkout@v3
         with:
           repository: stepfunc/rodbus
-          ref: release/prep-1.1.0
+          ref: 1.1.0-rc1
       - name: Install Rust
         uses: actions-rs/toolchain@v1
         with:
@@ -62,7 +62,7 @@ jobs:
         uses: actions/checkout@v3
         with:
           repository: stepfunc/rodbus
-          ref: release/prep-1.1.0
+          ref: 1.1.0-rc1
       - name: Install Rust
         uses: actions-rs/toolchain@v1
         with:
@@ -107,7 +107,7 @@ jobs:
         uses: actions/checkout@v3
         with:
           repository: stepfunc/rodbus
-          ref: release/prep-1.1.0
+          ref: 1.1.0-rc1
       - name: Download compiled FFI
         uses: actions/download-artifact@v2
         with: