diff --git a/starters/default/package-lock.json b/starters/default/package-lock.json
index bc6064e04e53c..75dfcbf2c5b4f 100644
--- a/starters/default/package-lock.json
+++ b/starters/default/package-lock.json
@@ -11614,10 +11614,11 @@
       "integrity": "sha1-mEcocL8igTL8vdhoEputEsPAKeM="
     },
     "prop-types": {
-      "version": "15.7.1",
-      "resolved": "https://registry.npmjs.org/prop-types/-/prop-types-15.7.1.tgz",
-      "integrity": "sha512-f8Lku2z9kERjOCcnDOPm68EBJAO2K00Q5mSgPAUE/gJuBgsYLbVy6owSrtcHj90zt8PvW+z0qaIIgsIhHOa1Qw==",
+      "version": "15.7.2",
+      "resolved": "https://registry.npmjs.org/prop-types/-/prop-types-15.7.2.tgz",
+      "integrity": "sha512-8QQikdH7//R2vurIJSutZ1smHYTcLpRWEOlHnzcWHmBYrOGUysKwSsrC89BCiFj3CbrfJ/nXFdJepOVrY1GCHQ==",
       "requires": {
+        "loose-envify": "^1.4.0",
         "object-assign": "^4.1.1",
         "react-is": "^16.8.1"
       }
diff --git a/starters/default/package.json b/starters/default/package.json
index 78794e307c071..d1c7aafcde508 100644
--- a/starters/default/package.json
+++ b/starters/default/package.json
@@ -13,7 +13,7 @@
     "gatsby-plugin-sharp": "^2.0.20",
     "gatsby-source-filesystem": "^2.0.20",
     "gatsby-transformer-sharp": "^2.1.13",
-    "prop-types": "^15.7.1",
+    "prop-types": "^15.7.2",
     "react": "^16.8.1",
     "react-dom": "^16.8.1",
     "react-helmet": "^5.2.0"