diff --git a/ghost/slack-notifications/package.json b/ghost/slack-notifications/package.json
index f7fc46c61b..fed933b2fd 100644
--- a/ghost/slack-notifications/package.json
+++ b/ghost/slack-notifications/package.json
@@ -18,7 +18,7 @@
     "lib"
   ],
   "devDependencies": {
-    "c8": "7.12.0",
+    "c8": "7.13.0",
     "mocha": "10.2.0",
     "sinon": "15.0.1"
   },
diff --git a/yarn.lock b/yarn.lock
index d926bed7e8..960177460e 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -8641,24 +8641,6 @@ bytes@3.1.2:
   resolved "https://registry.yarnpkg.com/bytes/-/bytes-3.1.2.tgz#8b0beeb98605adf1b128fa4386403c009e0221a5"
   integrity sha512-/Nf7TyzTx6S3yRJObOAV7956r8cr2+Oj8AC5dt8wSP3BQAoeX58NoHyCU8P8zGkNXStjTSi6fzO6F0pBdcYbEg==
 
-c8@7.12.0:
-  version "7.12.0"
-  resolved "https://registry.yarnpkg.com/c8/-/c8-7.12.0.tgz#402db1c1af4af5249153535d1c84ad70c5c96b14"
-  integrity sha512-CtgQrHOkyxr5koX1wEUmN/5cfDa2ckbHRA4Gy5LAL0zaCFtVWJS5++n+w4/sr2GWGerBxgTjpKeDclk/Qk6W/A==
-  dependencies:
-    "@bcoe/v8-coverage" "^0.2.3"
-    "@istanbuljs/schema" "^0.1.3"
-    find-up "^5.0.0"
-    foreground-child "^2.0.0"
-    istanbul-lib-coverage "^3.2.0"
-    istanbul-lib-report "^3.0.0"
-    istanbul-reports "^3.1.4"
-    rimraf "^3.0.2"
-    test-exclude "^6.0.0"
-    v8-to-istanbul "^9.0.0"
-    yargs "^16.2.0"
-    yargs-parser "^20.2.9"
-
 c8@7.13.0:
   version "7.13.0"
   resolved "https://registry.yarnpkg.com/c8/-/c8-7.13.0.tgz#a2a70a851278709df5a9247d62d7f3d4bcb5f2e4"