diff --git a/package.json b/package.json
index 27aa8fd..20abb66 100644
--- a/package.json
+++ b/package.json
@@ -7,8 +7,8 @@
     "url": "https://github.com/gatsbyjs/gatsby/issues"
   },
   "dependencies": {
-    "gatsby": "^2.19.7",
-    "gatsby-cli": "^2.8.30",
+    "gatsby": "^3.0.0",
+    "gatsby-cli": "^3.15.0",
     "gatsby-image": "^2.2.39",
     "gatsby-plugin-csp": "^1.1.3",
     "gatsby-plugin-feed": "^2.3.26",
@@ -28,7 +28,7 @@
     "gatsby-source-filesystem": "^2.1.46",
     "gatsby-transformer-remark": "^2.6.48",
     "gatsby-transformer-sharp": "^2.3.13",
-    "katex": "^0.11.1",
+    "katex": "^0.16.10",
     "prismjs": "^1.19.0",
     "react": "^16.12.0",
     "react-dom": "^16.12.0",