diff --git a/.gitlab/build-and-test-fast.yml b/.gitlab/build-and-test-fast.yml
index e47843df..13885f09 100644
--- a/.gitlab/build-and-test-fast.yml
+++ b/.gitlab/build-and-test-fast.yml
@@ -212,4 +212,4 @@ coverage:
     max: 2
     when: script_failure
   script:
-    - make coverage
+    - DD_API_KEY=$(vault kv get -field key kv/k8s/gitlab-runner/nginx-datadog/datadoghq-api-key 2>/dev/null) make coverage
diff --git a/Makefile b/Makefile
index f6a4ad15..1a4bc587 100644
--- a/Makefile
+++ b/Makefile
@@ -304,3 +304,4 @@ endif
 	tar -C .musl-build -xzf test/coverage_data.tar.gz
 	cd .musl-build; llvm-profdata merge -sparse *.profraw -o default.profdata && llvm-cov export ./ngx_http_datadog_module.so -format=lcov -instr-profile=default.profdata -ignore-filename-regex=src/coverage_fixup\.c > coverage.lcov
 	codecov -Z -f .musl-build/coverage.lcov --disable-search -t $$(vault kv get -field=token kv/k8s/gitlab-runner/nginx-datadog/codecov)
+	npx --yes @datadog/datadog-ci@latest coverage upload --format=lcov .musl-build/coverage.lcov || true
diff --git a/build_env/Dockerfile b/build_env/Dockerfile
index 53d0b190..89767c4d 100644
--- a/build_env/Dockerfile
+++ b/build_env/Dockerfile
@@ -85,6 +85,9 @@ RUN cargo install --locked cbindgen --version 0.26.0 && \
 # Shellcheck
 RUN apk add --no-cache shellcheck
 
+# Node.js (for datadog-ci coverage upload)
+RUN apk add --no-cache nodejs npm
+
 # UV and Python packages for tests
 COPY --from=uv /uv /usr/local/bin/uv
 COPY pyproject.toml .