diff --git a/exercises/practice/collatz-conjecture/.meta/config.json b/exercises/practice/collatz-conjecture/.meta/config.json
index 423425b..1519a3c 100644
--- a/exercises/practice/collatz-conjecture/.meta/config.json
+++ b/exercises/practice/collatz-conjecture/.meta/config.json
@@ -1,9 +1,7 @@
 {
-  "blurb": "Calculate the number of steps to reach 1 using the Collatz conjecture.",
   "authors": [
     "BNAndras"
   ],
-  "contributors": [],
   "files": {
     "solution": [
       "collatz-conjecture.red"
@@ -15,6 +13,7 @@
       ".meta/example.red"
     ]
   },
+  "blurb": "Calculate the number of steps to reach 1 using the Collatz conjecture.",
   "source": "An unsolved problem in mathematics named after mathematician Lothar Collatz",
   "source_url": "https://en.wikipedia.org/wiki/3x_%2B_1_problem"
 }