diff --git a/pagure/api/ci/jenkins.py b/pagure/api/ci/jenkins.py
index 724506e..c5aa9a8 100644
--- a/pagure/api/ci/jenkins.py
+++ b/pagure/api/ci/jenkins.py
@@ -72,6 +72,16 @@ def jenkins_ci_notification(
         _log.debug("Bad Request: No build ID retrieved")
         raise pagure.exceptions.APIError(400, error_code=APIERROR.EINVALIDREQ)
 
+    build_phase = data.get('build', {}).get('phase')
+    if not build_phase:
+        _log.debug("Bad Request: No build phase retrieved")
+        raise pagure.exceptions.APIError(400, error_code=APIERROR.EINVALIDREQ)
+    if build_phase not in ["STARTED", "FINALIZED"]:
+        _log.debug(
+            "Ignoring phase: %s - not in the list: STARTED, FINALIZED",
+            build_phase)
+        raise pagure.exceptions.APIError(400, error_code=APIERROR.EINVALIDREQ)
+
     try:
         lib_ci.process_jenkins_build(
             flask.g.session,