diff --git a/.circleci/config.yml b/.circleci/config.yml
index 51cb3e1dd8f..ae559eb988a 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -157,6 +157,14 @@ jobs:
       - run: yarn run build-style-spec
       - run: yarn run build-flow-types
       - run: yarn run test-build
+      - deploy:
+          name: Trigger memory metrics when merging to master
+          command: |
+            if [ -n "${WEB_METRICS_TOKEN}" ]; then
+              if [[ $CIRCLE_BRANCH == master ]]; then
+                curl -X POST https://circleci.com/api/v1.1/project/github/mapbox/web-metrics/build?circle-token=${WEB_METRICS_TOKEN}
+              fi
+            fi
       - store_artifacts:
           path: "dist"
       - store_artifacts: