diff --git a/CHANGELOG.md b/CHANGELOG.md
index fb853c33581..c42acd692db 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,2 +1,3 @@
 * Allow passing `GOOGLE_APPLICATION_CREDENTIALS` environment variable into the functions emulator.
 * Set FIREBASE_DATABASE_EMULATOR_HOST in emulators:exec.
+* Add upsert API for function triggers to the database emulator.
diff --git a/src/serve/javaEmulators.ts b/src/serve/javaEmulators.ts
index 321b978aaab..91a610c1ef5 100644
--- a/src/serve/javaEmulators.ts
+++ b/src/serve/javaEmulators.ts
@@ -28,10 +28,10 @@ const EmulatorDetails: { [s in JavaEmulators]: JavaEmulatorDetails } = {
     stdout: null,
     cacheDir: CACHE_DIR,
     remoteUrl:
-      "https://storage.googleapis.com/firebase-preview-drop/emulator/firebase-database-emulator-v4.1.2.jar",
-    expectedSize: 17124145,
-    expectedChecksum: "8bb21d19172a519fa69c5575b2fa221f",
-    localPath: path.join(CACHE_DIR, "firebase-database-emulator-v4.1.2.jar"),
+      "https://storage.googleapis.com/firebase-preview-drop/emulator/firebase-database-emulator-v4.2.0.jar",
+    expectedSize: 17131418,
+    expectedChecksum: "d9d825b2f321e05ca8dc9b758eec6ba6",
+    localPath: path.join(CACHE_DIR, "firebase-database-emulator-v4.2.0.jar"),
     namePrefix: "firebase-database-emulator",
   },
   firestore: {