diff --git a/.github/release-trigger.yml b/.github/release-trigger.yml
new file mode 100644
index 00000000..d4ca9418
--- /dev/null
+++ b/.github/release-trigger.yml
@@ -0,0 +1 @@
+enabled: true
diff --git a/synth.metadata b/synth.metadata
index 25194929..ca9dbd67 100644
--- a/synth.metadata
+++ b/synth.metadata
@@ -4,7 +4,7 @@
       "git": {
         "name": ".",
         "remote": "https://github.com/googleapis/java-containeranalysis.git",
-        "sha": "cd874a778e3f41fb32670cef4409c34f32c03bd7"
+        "sha": "8ed85ed31b580c78db768d1965c73d479a4d3981"
       }
     },
     {
@@ -19,7 +19,7 @@
       "git": {
         "name": "synthtool",
         "remote": "https://github.com/googleapis/synthtool.git",
-        "sha": "ff01716e16d2c6e87eaf87197b753ac9fcbbed5d"
+        "sha": "63cff634aabb85854caa511c5837ea6b45f42b4b"
       }
     }
   ],
@@ -44,6 +44,7 @@
     ".github/generated-files-bot.yml",
     ".github/readme/synth.py",
     ".github/release-please.yml",
+    ".github/release-trigger.yml",
     ".github/snippet-bot.yml",
     ".github/sync-repo-settings.yaml",
     ".github/trusted-contribution.yml",