diff --git a/runners/google-cloud-dataflow-java/build.gradle b/runners/google-cloud-dataflow-java/build.gradle
index 544453f..990ede6 100644
--- a/runners/google-cloud-dataflow-java/build.gradle
+++ b/runners/google-cloud-dataflow-java/build.gradle
@@ -218,7 +218,7 @@
   def defaultDockerImageName = containerImageName(
           name: "java_sdk",
           root: "apachebeam",
-          tag: project.version)
+          tag: project.sdk_version)
   doLast {
     exec {
       commandLine "docker", "tag", "${defaultDockerImageName}", "${dockerImageName}"