diff --git a/package-lock.json b/package-lock.json
index c35c57d..6322431 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -12332,9 +12332,9 @@
       }
     },
     "tsconfigs": {
-      "version": "4.0.2",
-      "resolved": "https://registry.npmjs.org/tsconfigs/-/tsconfigs-4.0.2.tgz",
-      "integrity": "sha512-Po+Hqetcu0P83zy6WHpT0bJIpXgKS+/N5mtiSpzxcTdjUbPNE2kijqUCZecwERHkVQt/mqNC6xzj/C92hs40qg==",
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/tsconfigs/-/tsconfigs-5.0.0.tgz",
+      "integrity": "sha512-mIURkwOBBtghy179f/uhXoJOJzAG4Zpvg5+PhG7m8P6BuQx72lrQ9qbFbZkr4svUX85BoHraRX1UYfg67VAjIw==",
       "dev": true
     },
     "tslib": {
diff --git a/package.json b/package.json
index 0a4eaeb..42f3d08 100644
--- a/package.json
+++ b/package.json
@@ -73,7 +73,7 @@
     "remark-cli": "8.0.0",
     "remark-toc": "7.0.0",
     "ts-transform-import-path-rewrite": "0.2.1",
-    "tsconfigs": "4.0.2",
+    "tsconfigs": "5.0.0",
     "tty-table": "4.1.3",
     "ttypescript": "1.5.10",
     "typescript": "3.9.5",
diff --git a/src/test/tsconfig.json b/src/test/tsconfig.json
index e0ed5ed..ca0d9f9 100644
--- a/src/test/tsconfig.json
+++ b/src/test/tsconfig.json
@@ -4,6 +4,9 @@
     { "path": "../package/tsconfig.json" }
   ],
   "compilerOptions": {
+    "types": [
+      "mocha"
+    ],
     "strictFunctionTypes": false,
     "target": "ES2015",
     "outDir": "../../build/test",