diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7a743a7..fb857b0 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -104,7 +104,7 @@ jobs:
       emulator:
         #image: gcr.io/flow-container-registry/emulator:latest
         # temporarily changed because the latest emulator is not 1.0
-        image: gcr.io/flow-container-registry/emulator:v1.0.0-preview.38
+        image: gcr.io/flow-container-registry/emulator:1.0.0-preview.38
         ports:
           - 3569:3569
         env: