diff --git a/sample-app/package-lock.json b/sample-app/package-lock.json
index 682eb87e..6471de63 100644
--- a/sample-app/package-lock.json
+++ b/sample-app/package-lock.json
@@ -290,9 +290,9 @@
       }
     },
     "debug": {
-      "version": "2.6.8",
-      "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.8.tgz",
-      "integrity": "sha1-5zFTHKLt4n0YgiJCfaF4IdaP9Pw=",
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/debug/-/debug-3.1.0.tgz",
+      "integrity": "sha512-OX8XqP7/1a9cqkxYw2yXss15f26NKWBpDXQd0/uK/KPqdQhxbPa994hnzjcE2VqQpDslf55723cKPUOGSmMY3g==",
       "requires": {
         "ms": "2.0.0"
       }
@@ -744,6 +744,16 @@
         "depd": "1.1.0",
         "on-finished": "2.3.0",
         "on-headers": "1.0.1"
+      },
+      "dependencies": {
+        "debug": {
+          "version": "2.6.8",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.8.tgz",
+          "integrity": "sha512-E22fsyWPt/lr4/UgQLt/pXqerGMDsanhbnmqIS3VAXuDi1v3IpiwXe2oncEIondHSBuPDWRoK/pMjlvi8FuOXQ==",
+          "requires": {
+            "ms": "2.0.0"
+          }
+        }
       }
     },
     "ms": {
diff --git a/sample-app/package.json b/sample-app/package.json
index 0a4de535..604d6e20 100644
--- a/sample-app/package.json
+++ b/sample-app/package.json
@@ -13,7 +13,7 @@
     "connect-ensure-login": "^0.1.1",
     "connect-flash": "^0.1.1",
     "cookie-parser": "^1.4.3",
-    "debug": "^2.6.1",
+    "debug": "^3.1.0",
     "dotenv": "^4.0.0",
     "express": "^4.14.1",
     "express-session": "^1.11.3",
diff --git a/sample-app/yarn.lock b/sample-app/yarn.lock
index 8bb95bf8..09dec2eb 100644
--- a/sample-app/yarn.lock
+++ b/sample-app/yarn.lock
@@ -225,12 +225,18 @@ dashdash@^1.12.0:
   dependencies:
     assert-plus "^1.0.0"
 
-debug@2.6.9, debug@^2.6.1:
+debug@2.6.9:
   version "2.6.9"
   resolved "https://registry.yarnpkg.com/debug/-/debug-2.6.9.tgz#5d128515df134ff327e90a4c93f4e077a536341f"
   dependencies:
     ms "2.0.0"
 
+debug@^3.1.0:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/debug/-/debug-3.1.0.tgz#5bb5a0672628b64149566ba16819e61518c67261"
+  dependencies:
+    ms "2.0.0"
+
 decamelize@^1.0.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/decamelize/-/decamelize-1.2.0.tgz#f6534d15148269b20352e7bee26f501f9a191290"