diff --git a/package-lock.json b/package-lock.json
index 2644f9e..8f16a16 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -20,7 +20,7 @@
         "gatsby-source-filesystem": "3.11.0",
         "gatsby-transformer-remark": "4.8.0",
         "gh-pages": "^3.2.3",
-        "prop-types": "15.7.2",
+        "prop-types": "15.8.1",
         "react": "17.0.2",
         "react-dom": "17.0.2",
         "react-helmet": "6.1.0"
@@ -20210,13 +20210,13 @@
       }
     },
     "node_modules/prop-types": {
-      "version": "15.7.2",
-      "resolved": "https://registry.npmjs.org/prop-types/-/prop-types-15.7.2.tgz",
-      "integrity": "sha512-8QQikdH7//R2vurIJSutZ1smHYTcLpRWEOlHnzcWHmBYrOGUysKwSsrC89BCiFj3CbrfJ/nXFdJepOVrY1GCHQ==",
+      "version": "15.8.1",
+      "resolved": "https://registry.npmjs.org/prop-types/-/prop-types-15.8.1.tgz",
+      "integrity": "sha512-oj87CgZICdulUohogVAR7AjlC0327U4el4L6eAvOqCeudMDVU0NThNaV+b9Df4dXgSP1gXMTnPdhfe/2qDH5cg==",
       "dependencies": {
         "loose-envify": "^1.4.0",
         "object-assign": "^4.1.1",
-        "react-is": "^16.8.1"
+        "react-is": "^16.13.1"
       }
     },
     "node_modules/proper-lockfile": {
@@ -42613,13 +42613,13 @@
       }
     },
     "prop-types": {
-      "version": "15.7.2",
-      "resolved": "https://registry.npmjs.org/prop-types/-/prop-types-15.7.2.tgz",
-      "integrity": "sha512-8QQikdH7//R2vurIJSutZ1smHYTcLpRWEOlHnzcWHmBYrOGUysKwSsrC89BCiFj3CbrfJ/nXFdJepOVrY1GCHQ==",
+      "version": "15.8.1",
+      "resolved": "https://registry.npmjs.org/prop-types/-/prop-types-15.8.1.tgz",
+      "integrity": "sha512-oj87CgZICdulUohogVAR7AjlC0327U4el4L6eAvOqCeudMDVU0NThNaV+b9Df4dXgSP1gXMTnPdhfe/2qDH5cg==",
       "requires": {
         "loose-envify": "^1.4.0",
         "object-assign": "^4.1.1",
-        "react-is": "^16.8.1"
+        "react-is": "^16.13.1"
       }
     },
     "proper-lockfile": {
diff --git a/package.json b/package.json
index 1c71aa2..bbd7e39 100644
--- a/package.json
+++ b/package.json
@@ -15,7 +15,7 @@
     "gatsby-source-filesystem": "3.11.0",
     "gatsby-transformer-remark": "4.8.0",
     "gh-pages": "^3.2.3",
-    "prop-types": "15.7.2",
+    "prop-types": "15.8.1",
     "react": "17.0.2",
     "react-dom": "17.0.2",
     "react-helmet": "6.1.0"