diff --git a/.github/workflows/docker.yaml b/.github/workflows/docker.yaml
index d196f22..b70197b 100644
--- a/.github/workflows/docker.yaml
+++ b/.github/workflows/docker.yaml
@@ -10,7 +10,7 @@ on:
       - main
 
 env:
-  SUI_GIT_REF: testnet-v1.39.1
+  SUI_GIT_REF: testnet-v1.39.3
 
 concurrency: docker