diff --git a/ci/scripts/publish_test_metrics.py b/ci/scripts/publish_test_metrics.py
index 514d7af2..cdd7d262 100644
--- a/ci/scripts/publish_test_metrics.py
+++ b/ci/scripts/publish_test_metrics.py
@@ -29,11 +29,11 @@ def _read_text(url: str) -> str:
 
 
 def _post_text(url: str, payload: str) -> None:
-    """POST a plain-text payload and fail on any 4xx/5xx response."""
+    """PUT a plain-text payload and fail on any 4xx/5xx response."""
     request = urllib.request.Request(
         url,
         data=payload.encode("utf-8"),
-        method="POST",
+        method="PUT",
         headers={"Content-Type": "text/plain"},
     )
     with urllib.request.urlopen(request, timeout=10) as response:
diff --git a/services/logging/Jenkinsfile.data-prepper b/services/logging/Jenkinsfile.data-prepper
index 6011727c..20ef9814 100644
--- a/services/logging/Jenkinsfile.data-prepper
+++ b/services/logging/Jenkinsfile.data-prepper
@@ -222,7 +222,7 @@ EOF
           if [ "${status}" != "ok" ]; then
             gate_glue_check="failed"
           fi
-          cat <<METRICS | curl -fsS --data-binary @- "${gateway}/metrics/job/platform-quality-ci/suite/${suite}" >/dev/null || \
+          cat <<METRICS | curl -fsS -X PUT --data-binary @- "${gateway}/metrics/job/platform-quality-ci/suite/${suite}" >/dev/null || \
             echo "warning: metrics push failed for suite=${suite}" >&2
 # TYPE platform_quality_gate_runs_total counter
 platform_quality_gate_runs_total{suite="${suite}",status="ok"} ${ok_count}
diff --git a/services/monitoring/scripts/platform_quality_suite_probe.sh b/services/monitoring/scripts/platform_quality_suite_probe.sh
index df5fff36..41e00eb3 100755
--- a/services/monitoring/scripts/platform_quality_suite_probe.sh
+++ b/services/monitoring/scripts/platform_quality_suite_probe.sh
@@ -35,7 +35,7 @@ push_suite_counters() {
     failed_count=$((failed_count + 1))
   fi
 
-  cat <<METRICS | curl -fsS --data-binary @- "${PUSHGATEWAY_URL}/metrics/job/platform-quality-suite-probe/suite/${suite}" >/dev/null
+  cat <<METRICS | curl -fsS -X PUT --data-binary @- "${PUSHGATEWAY_URL}/metrics/job/platform-quality-suite-probe/suite/${suite}" >/dev/null
 # TYPE platform_quality_gate_runs_total counter
 platform_quality_gate_runs_total{suite="${suite}",status="ok"} ${ok_count}
 platform_quality_gate_runs_total{suite="${suite}",status="failed"} ${failed_count}