diff --git a/tests/json/connection_uri/valid-auth.json b/tests/json/connection_uri/valid-auth.json
index 0b04f7d..36a7be3 100644
--- a/tests/json/connection_uri/valid-auth.json
+++ b/tests/json/connection_uri/valid-auth.json
@@ -39,25 +39,6 @@
       "options": null
     },
     {
-      "description": "User info for single IPv4 host with database (escaped null bytes)",
-      "uri": "mongodb://a%00lice:f%00oo@127.0.0.1/t%00est",
-      "valid": true,
-      "warning": false,
-      "hosts": [
-        {
-          "type": "ipv4",
-          "host": "127.0.0.1",
-          "port": null
-        }
-      ],
-      "auth": {
-        "username": "a\u0000lice",
-        "password": "f\u0000oo",
-        "db": "t\u0000est"
-      },
-      "options": null
-    },
-    {
       "description": "User info for single IP literal host without database",
       "uri": "mongodb://bob:bar@[::1]:27018",
       "valid": true,
@@ -327,4 +308,4 @@
       }
     }
   ]
-}
\ No newline at end of file
+}

diff --git a/tests/json/connection_uri/valid-options.json b/tests/json/connection_uri/valid-options.json
index 2a29ce2..4c2bded 100644
--- a/tests/json/connection_uri/valid-options.json
+++ b/tests/json/connection_uri/valid-options.json
@@ -20,23 +20,6 @@
       "options": {
         "authmechanism": "MONGODB-CR"
       }
-    },
-    {
-      "description": "Option key and value (escaped null bytes)",
-      "uri": "mongodb://example.com/?replicaSet=my%00rs",
-      "valid": true,
-      "warning": false,
-      "hosts": [
-        {
-          "type": "hostname",
-          "host": "example.com",
-          "port": null
-        }
-      ],
-      "auth": null,
-      "options": {
-        "replicaset": "my\u0000rs"
-      }
     }
   ]
-}
\ No newline at end of file
+}

tests/test-mongoc-uri.c:722    ASSERT_URIDECODE_FAIL ("%00");