diff --git a/package-lock.json b/package-lock.json
index eec5023..2cecc7b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -243,11 +243,18 @@
       "dev": true
     },
     "debug": {
-      "version": "4.1.1",
-      "resolved": "https://registry.npmjs.org/debug/-/debug-4.1.1.tgz",
-      "integrity": "sha512-pYAIzeRo8J6KPEaJ0VWOh5Pzkbw/RetuzehGM7QRRX5he4fPHx2rdKMB256ehJCkX+XRQm16eZLqLNS8RSZXZw==",
+      "version": "4.2.0",
+      "resolved": "https://registry.npmjs.org/debug/-/debug-4.2.0.tgz",
+      "integrity": "sha512-IX2ncY78vDTjZMFUdmsvIRFY2Cf4FnD0wRs+nQwJU8Lu99/tPFdb0VybiiMTPe3I6rQmwsqQqRBvxU+bZ/I8sg==",
       "requires": {
-        "ms": "^2.1.1"
+        "ms": "2.1.2"
+      },
+      "dependencies": {
+        "ms": {
+          "version": "2.1.2",
+          "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.2.tgz",
+          "integrity": "sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w=="
+        }
       }
     },
     "depd": {
@@ -646,7 +653,8 @@
     "ms": {
       "version": "2.1.1",
       "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.1.tgz",
-      "integrity": "sha512-tgp+dl5cGk28utYktBsrFqA7HKgrhgPsg6Z/EfhWI4gl1Hwq8B/GmY/0oXZ6nF8hDVesS/FpnYaD/kOWhYQvyg=="
+      "integrity": "sha512-tgp+dl5cGk28utYktBsrFqA7HKgrhgPsg6Z/EfhWI4gl1Hwq8B/GmY/0oXZ6nF8hDVesS/FpnYaD/kOWhYQvyg==",
+      "dev": true
     },
     "negotiator": {
       "version": "0.6.2",
diff --git a/package.json b/package.json
index 8f5dd9a..3b223a5 100644
--- a/package.json
+++ b/package.json
@@ -35,7 +35,7 @@
     "puppeteer-firefox": "^0.5.1"
   },
   "dependencies": {
-    "debug": "^4.1.1",
+    "debug": "^4.2.0",
     "heya-async": "^1.0.1",
     "heya-io-node": "^1.1.7"
   }