diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e7e788f..d977391 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -108,9 +108,11 @@ jobs:
 
         - name: Node.js 12.x
           node-version: "12.22"
+          npm-i: mocha@9.2.2
 
         - name: Node.js 13.x
           node-version: "13.14"
+          npm-i: mocha@9.2.2
 
         - name: Node.js 14.x
           node-version: "14.19"
diff --git a/package.json b/package.json
index ed5606a..ee12f87 100644
--- a/package.json
+++ b/package.json
@@ -17,7 +17,7 @@
     "benchmark": "2.1.4",
     "eslint": "7.32.0",
     "eslint-plugin-markdown": "2.2.1",
-    "mocha": "9.2.2",
+    "mocha": "10.0.0",
     "nyc": "15.1.0",
     "safe-buffer": "5.2.1",
     "top-sites": "1.1.97"