diff --git a/plugins/modules/hcloud_certificate.py b/plugins/modules/hcloud_certificate.py
index 7c827ef..381a089 100644
--- a/plugins/modules/hcloud_certificate.py
+++ b/plugins/modules/hcloud_certificate.py
@@ -232,7 +232,7 @@ class AnsibleHcloudCertificate(Hcloud):
                 id={"type": "int"},
                 name={"type": "str"},
                 certificate={"type": "str"},
-                private_key={"type": "str"},
+                private_key={"type": "str", "no_log": True},
                 labels={"type": "dict"},
                 state={
                     "choices": ["absent", "present"],
diff --git a/plugins/modules/hcloud_server.py b/plugins/modules/hcloud_server.py
index f96c3d0..25e8445 100644
--- a/plugins/modules/hcloud_server.py
+++ b/plugins/modules/hcloud_server.py
@@ -563,7 +563,7 @@ class AnsibleHcloudServer(Hcloud):
                 location={"type": "str"},
                 datacenter={"type": "str"},
                 user_data={"type": "str"},
-                ssh_keys={"type": "list", "elements": "str"},
+                ssh_keys={"type": "list", "elements": "str", "no_log": False},
                 volumes={"type": "list", "elements": "str"},
                 firewalls={"type": "list", "elements": "str"},
                 labels={"type": "dict"},