diff --git a/.github/workflows/docker.yaml b/.github/workflows/docker.yaml
index a8b9970..a006335 100644
--- a/.github/workflows/docker.yaml
+++ b/.github/workflows/docker.yaml
@@ -10,7 +10,7 @@ on:
       - main
 
 env:
-  SUI_GIT_REF: testnet-v1.70.1
+  SUI_GIT_REF: mainnet-v1.70.2
 
 concurrency: docker
 
diff --git a/README.md b/README.md
index e2b74a2..647ea21 100644
--- a/README.md
+++ b/README.md
@@ -5,7 +5,7 @@
 Multi-platform docker images for [Sui](https://sui.io/).
 
 These are built from the official release source code from [Sui](https://github.com/MystenLabs/sui/releases).
-The images are tagged with the corresponding release version, e.g. `mainnet-v1.69.2`.
+The images are tagged with the corresponding release version, e.g. `mainnet-v1.70.2`.
 
 Please refer to the [GitHub Packages](https://github.com/orgs/shinamicorp/packages?repo_name=sui-docker) page for available versions.
 
diff --git a/sui b/sui
index ca58a49..461eaf9 100755
--- a/sui
+++ b/sui
@@ -13,7 +13,7 @@ import sys
 from pathlib import Path
 from subprocess import run
 
-SUI_IMAGE = "ghcr.io/shinamicorp/sui:mainnet-v1.69.2"
+SUI_IMAGE = "ghcr.io/shinamicorp/sui:mainnet-v1.70.2"
 
 
 def sui(*args: str) -> None: