diff --git a/package-lock.json b/package-lock.json
index 7018c5b..7bcfb45 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -656,9 +656,9 @@
       }
     },
     "commander": {
-      "version": "5.0.0",
-      "resolved": "https://registry.npmjs.org/commander/-/commander-5.0.0.tgz",
-      "integrity": "sha512-JrDGPAKjMGSP1G0DUoaceEJ3DZgAfr/q6X7FVk4+U5KxUSKviYGM2k6zWkfyyBHy5rAtzgYJFa1ro2O9PtoxwQ=="
+      "version": "5.1.0",
+      "resolved": "https://registry.npmjs.org/commander/-/commander-5.1.0.tgz",
+      "integrity": "sha512-P0CysNDQ7rtVw4QIQtm+MRxV66vKFSvlsQvGYXZWR3qFU0jlMKHZZZgw8e+8DSah4UDKMqnknRDQz+xuQXQ/Zg=="
     },
     "commondir": {
       "version": "1.0.1",
diff --git a/package.json b/package.json
index 50620d4..1ee649e 100644
--- a/package.json
+++ b/package.json
@@ -27,7 +27,7 @@
   "dependencies": {
     "async": "^3.0.1",
     "char-spinner": "^1.0.1",
-    "commander": "^5.0.0",
+    "commander": "^5.1.0",
     "concat-stream": "^2.0.0",
     "csv": "^5.1.3",
     "geobuf": "^3.0.0",