diff --git a/CHANGELOG.md b/CHANGELOG.md
index d235bfa9486..a539fbb5737 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,8 @@
 - Add initial delay when loading python functions (#8239)
 - Enforce webframeworks enablement only on webframeworks sites (#8168)
 - Fix issue where `apps:init` throws an error upon app creation
+- Update Firebase Data Connect local toolkit to v1.8.3, which includes the following changes: (#8263)
+  - Adds a `_metadata.distance` field to vector similarity search results
+  - Fixes `auth` and `request.auth` when the request is unauthenticated
+  - Fixes an issue with hanging commas in import statements in the generated Web SDK
+  - Fixes an issue where the additional union type `{ __angular?: true }` breaks type inference in the generated Web SDK
diff --git a/src/emulator/downloadableEmulators.ts b/src/emulator/downloadableEmulators.ts
index e31e7c38ac6..f0757dd205d 100755
--- a/src/emulator/downloadableEmulators.ts
+++ b/src/emulator/downloadableEmulators.ts
@@ -59,20 +59,20 @@ const EMULATOR_UPDATE_DETAILS: { [s in DownloadableEmulators]: EmulatorUpdateDet
   dataconnect:
     process.platform === "darwin" // macos
       ? {
-          version: "1.8.2",
-          expectedSize: 25506560,
-          expectedChecksum: "2db676cb9d30b289897ffb7e5aa1ef63",
+          version: "1.8.3",
+          expectedSize: 25535232,
+          expectedChecksum: "53fb0bf52f21a84b1d6afa70371dd00c",
         }
       : process.platform === "win32" // windows
         ? {
-            version: "1.8.2",
-            expectedSize: 25936384,
-            expectedChecksum: "08e6ca0ad20893b565fb57effd687eb8",
+            version: "1.8.3",
+            expectedSize: 25965568,
+            expectedChecksum: "d717235f244e5bbbc00158eae3aa97f0",
           }
         : {
-            version: "1.8.2", // linux
-            expectedSize: 25415832,
-            expectedChecksum: "24e0eb78acb619ed91f6d268dd18df05",
+            version: "1.8.3", // linux
+            expectedSize: 25448600,
+            expectedChecksum: "cd381e329a27ff0c81c41d7e635d6733",
           },
 };