diff --git a/action.yml b/action.yml
index dff1cb0..855da74 100644
--- a/action.yml
+++ b/action.yml
@@ -88,7 +88,7 @@ inputs:
 
 runs:
   using: "docker"
-  image: "docker://ghcr.io/dena/unity-meta-check/unity-meta-check-gh-action:3.1.2"
+  image: "docker://ghcr.io/dena/unity-meta-check/unity-meta-check-gh-action:3.1.3-alpha0"
   args:
     - "-inputs-json"
     - "${{ toJSON(inputs) }}"
diff --git a/version/version.go b/version/version.go
index 808efbc..a4c8a70 100644
--- a/version/version.go
+++ b/version/version.go
@@ -1,4 +1,4 @@
 package version
 
 // NOTE: Also edit the image tag in action.yml
-const Version = "3.1.2"
+const Version = "3.1.3-alpha0"