diff --git a/clouddriver-appengine/src/main/groovy/com/netflix/spinnaker/clouddriver/appengine/gcsClient/AppengineGcsRepositoryClient.groovy b/clouddriver-appengine/src/main/groovy/com/netflix/spinnaker/clouddriver/appengine/gcsClient/AppengineGcsRepositoryClient.groovy
index 1e8e04c4b1c..780472d4a9b 100644
--- a/clouddriver-appengine/src/main/groovy/com/netflix/spinnaker/clouddriver/appengine/gcsClient/AppengineGcsRepositoryClient.groovy
+++ b/clouddriver-appengine/src/main/groovy/com/netflix/spinnaker/clouddriver/appengine/gcsClient/AppengineGcsRepositoryClient.groovy
@@ -20,11 +20,13 @@ import com.netflix.spinnaker.clouddriver.appengine.AppengineJobExecutor
 import com.netflix.spinnaker.clouddriver.appengine.artifacts.GcsStorageService
 import com.netflix.spinnaker.clouddriver.appengine.model.AppengineRepositoryClient
 import com.netflix.spinnaker.clouddriver.artifacts.ArtifactUtils
+import groovy.transform.CompileStatic
 import groovy.transform.TupleConstructor
 import groovy.util.logging.Slf4j
 import org.apache.commons.io.FileUtils
 import org.apache.commons.io.IOUtils
 
+@CompileStatic
 @Slf4j
 @TupleConstructor
 class AppengineGcsRepositoryClient implements AppengineRepositoryClient {
@@ -57,6 +59,16 @@ class AppengineGcsRepositoryClient implements AppengineRepositoryClient {
     def slash = fullPath.indexOf("/")
     def bucketName = fullPath.substring(0, slash)
     def bucketPath = fullPath.substring(slash + 1)
+    Long version = null
+
+    def versionSeparator = bucketPath.indexOf("#")
+    if (versionSeparator >= 0) {
+      String versionString = bucketPath.substring(versionSeparator + 1)
+      if (!versionString.isEmpty()) {
+        version = Long.parseLong(versionString)
+      }
+      bucketPath = bucketPath.substring(0, versionSeparator)
+    }
 
     // Start with a clean directory for each deployment.
     File targetDirectory = new File(targetDirectoryPath)
@@ -67,8 +79,8 @@ class AppengineGcsRepositoryClient implements AppengineRepositoryClient {
       throw new IllegalArgumentException("GAE staging directory resolved to a file: ${}, failing...")
     }
 
-    if (fullPath.endsWith(".tar")) {
-      InputStream tas = storage.openObjectStream(bucketName, bucketPath)
+    if (bucketPath.endsWith(".tar")) {
+      InputStream tas = storage.openObjectStream(bucketName, bucketPath, version)
 
       // NOTE: We write the tar file out to an intermediate temp file because the tar input stream
       // directly from openObjectStream() closes unexpectedly when accessed from untarStreamToPath()
diff --git a/clouddriver-appengine/src/main/java/com/netflix/spinnaker/clouddriver/appengine/artifacts/GcsStorageService.java b/clouddriver-appengine/src/main/java/com/netflix/spinnaker/clouddriver/appengine/artifacts/GcsStorageService.java
index db1e72300ec..023926b33c5 100644
--- a/clouddriver-appengine/src/main/java/com/netflix/spinnaker/clouddriver/appengine/artifacts/GcsStorageService.java
+++ b/clouddriver-appengine/src/main/java/com/netflix/spinnaker/clouddriver/appengine/artifacts/GcsStorageService.java
@@ -97,8 +97,12 @@ public GcsStorageService(Storage storage) {
     storage_ = storage;
   }
 
-  public InputStream openObjectStream(String bucketName, String path) throws IOException {
+  public InputStream openObjectStream(String bucketName, String path, Long generation)
+      throws IOException {
     Storage.Objects.Get get = storage_.objects().get(bucketName, path);
+    if (generation != null) {
+      get.setGeneration(generation);
+    }
     return get.executeMediaAsInputStream();
   }
 
@@ -143,7 +147,7 @@ public void visitObjects(String bucketName, VisitorOperation op) throws IOExcept
 
   public void downloadStorageObjectRelative(
       StorageObject obj, String ignorePrefix, String baseDirectory) throws IOException {
-    InputStream stream = openObjectStream(obj.getBucket(), obj.getName());
+    InputStream stream = openObjectStream(obj.getBucket(), obj.getName(), obj.getGeneration());
     String objPath = obj.getName();
     if (!ignorePrefix.isEmpty()) {
       ignorePrefix += File.separator;