diff --git a/.github/workflows/test-sui.yaml b/.github/workflows/test-sui.yaml
index c9ec7451..1364c12c 100644
--- a/.github/workflows/test-sui.yaml
+++ b/.github/workflows/test-sui.yaml
@@ -2,9 +2,6 @@ name: Test Sui
 
 on: pull_request
 
-env:
-  SUI_VERSION: mainnet-v1.25.3
-
 jobs:
   test-sui:
     runs-on: blacksmith-2vcpu-ubuntu-2204
@@ -22,6 +19,12 @@ jobs:
       - name: Install
         run: npm ci
 
+      - name: Read SUI_VERSION from JSON
+        id: read-json
+        run: |
+          SUI_VERSION=$(jq -r '.SUI_VERSION' sui/version.json)
+          echo "SUI_VERSION=${SUI_VERSION}" >> $GITHUB_ENV
+
       - name: Setup Sui CLI and install dependencies
         uses: ./.github/actions/setup-sui
         with:
diff --git a/sui/version.json b/sui/version.json
new file mode 100644
index 00000000..32a8c3ef
--- /dev/null
+++ b/sui/version.json
@@ -0,0 +1,3 @@
+{
+  "SUI_VERSION": "mainnet-v1.25.3"
+}