diff --git a/config.json b/config.json
index b8f773d..b5f625d 100644
--- a/config.json
+++ b/config.json
@@ -55,7 +55,8 @@
         "difficulty": 1,
         "topics": [
           "math"
-        ]
+        ],
+        "status": "deprecated"
       },
       {
         "slug": "leap",
@@ -262,7 +263,8 @@
         "difficulty": 1,
         "topics": [
           "math"
-        ]
+        ],
+        "status": "deprecated"
       },
       {
         "slug": "octal",
@@ -273,7 +275,8 @@
         "difficulty": 1,
         "topics": [
           "math"
-        ]
+        ],
+        "status": "deprecated"
       },
       {
         "slug": "bob",
@@ -319,7 +322,8 @@
         "difficulty": 1,
         "topics": [
           "math"
-        ]
+        ],
+        "status": "deprecated"
       },
       {
         "slug": "two-fer",