diff --git a/.travis.yml b/.travis.yml
index 2635027..21c7ab4 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -75,6 +75,7 @@ before_install:
     # Configure supertest for http calls
     if   node_version_lt '0.10'; then npm_use_module 'supertest' '1.1.0'
     elif node_version_lt '4.0' ; then npm_use_module 'supertest' '2.0.0'
+    elif node_version_lt '6.0' ; then npm_use_module 'supertest' '3.4.2'
     fi
   # Update Node.js modules
   - |
diff --git a/package.json b/package.json
index 0f30807..47d6e3f 100644
--- a/package.json
+++ b/package.json
@@ -32,7 +32,7 @@
     "istanbul": "0.4.5",
     "mocha": "6.2.0",
     "split": "1.0.1",
-    "supertest": "3.4.2"
+    "supertest": "4.0.2"
   },
   "files": [
     "LICENSE",