diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 962fdeb..c737002 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -88,9 +88,11 @@ jobs:
 
         - name: Node.js 10.x
           node-version: "10.24"
+          npm-i: mocha@8.4.0
 
         - name: Node.js 11.x
           node-version: "11.15"
+          npm-i: mocha@8.4.0
 
         - name: Node.js 12.x
           node-version: "12.22"
diff --git a/package.json b/package.json
index 7f8c8c3..15bb84d 100644
--- a/package.json
+++ b/package.json
@@ -24,7 +24,7 @@
     "eslint-plugin-promise": "5.1.1",
     "eslint-plugin-standard": "4.1.0",
     "istanbul": "0.4.5",
-    "mocha": "8.4.0"
+    "mocha": "9.1.3"
   },
   "files": [
     "LICENSE",