diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index f36c7477..9c47f5c2 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -45,6 +45,11 @@ jobs:
         working-directory: ./frontend
         run: npm ci
 
+      - name: Install Chrome
+        uses: browser-actions/setup-chrome@latest
+
       - name: Run tests (frontend)
         working-directory: ./frontend
         run: npm run test:ci
+        env:
+          CHROME_BIN: /usr/bin/google-chrome-stable
diff --git a/frontend/package.json b/frontend/package.json
index 8a049cbc..caa7619a 100644
--- a/frontend/package.json
+++ b/frontend/package.json
@@ -12,6 +12,7 @@
     "build": "npm run write:env -s && ng build --base-href=/ui/",
     "watch": "ng build --watch --configuration development",
     "test": "ng test",
+    "test:ci": "ng test --no-watch --no-progress --browsers=ChromeHeadless",
     "lint": "ng lint",
     "lint:ci": "echo skipping",
     "write:env": "ngx-scripts env npm_package_version SERVER_URL GCLOUD_PROJECT FIRESTORE_DATABASE AUTH"
diff --git a/src/llm/models/openai.ts b/src/llm/models/openai.ts
index 95119f37..474778e6 100644
--- a/src/llm/models/openai.ts
+++ b/src/llm/models/openai.ts
@@ -167,7 +167,7 @@ export class OpenAI extends BaseLLM {
 				stream: false,
 			});
 			const responseText = stream.choices[0].message.content;
-			let timeToFirstToken = Date.now();
+			const timeToFirstToken = Date.now();
 			const finishTime = Date.now();
 
 			const llmCall: LlmCall = await llmCallSave;