diff --git a/cmk/gui/watolib/broker_certificates.py b/cmk/gui/watolib/broker_certificates.py
index 124634136b8..2b98f78d0de 100644
--- a/cmk/gui/watolib/broker_certificates.py
+++ b/cmk/gui/watolib/broker_certificates.py
@@ -31,6 +31,7 @@
     BrokerCertificates,
     ca_key_file,
     cacert_file,
+    clear_brokers_certs_cache,
     multisite_cert_file,
     site_cert_file,
     site_key_file,
@@ -188,5 +189,6 @@ def execute(self, api_request: BrokerCertificates) -> bool:
         store.save_bytes_to_file(site_key_file(paths.omd_root), api_request.key)
         cacert_file(paths.omd_root).unlink(missing_ok=True)
         ca_key_file(paths.omd_root).unlink(missing_ok=True)
+        clear_brokers_certs_cache()
 
         return True
diff --git a/packages/cmk-messaging/cmk/messaging/__init__.py b/packages/cmk-messaging/cmk/messaging/__init__.py
index 2ec62bfb5f4..f39980a4869 100644
--- a/packages/cmk-messaging/cmk/messaging/__init__.py
+++ b/packages/cmk-messaging/cmk/messaging/__init__.py
@@ -10,6 +10,7 @@
     BrokerCertificates,
     ca_key_file,
     cacert_file,
+    clear_brokers_certs_cache,
     get_local_port,
     multisite_ca_key_file,
     multisite_cacert_file,
@@ -44,6 +45,7 @@
     "ca_key_file",
     "Channel",
     "check_remote_connection",
+    "clear_brokers_certs_cache",
     "CMKConnectionError",
     "Connection",
     "ConnectionFailed",
diff --git a/packages/cmk-messaging/cmk/messaging/_config.py b/packages/cmk-messaging/cmk/messaging/_config.py
index 68bb3d77c5e..50ae7b97397 100644
--- a/packages/cmk-messaging/cmk/messaging/_config.py
+++ b/packages/cmk-messaging/cmk/messaging/_config.py
@@ -157,3 +157,7 @@ def _make_ssl_context(omd_root: Path) -> ssl.SSLContext:
     context.verify_mode = ssl.CERT_REQUIRED
     context.load_cert_chain(site_cert_file(omd_root), site_key_file(omd_root))
     return context
+
+
+def clear_brokers_certs_cache() -> None:
+    subprocess.check_output(["rabbitmqctl", "eval", "ssl:clear_pem_cache()."])