build: update dependencies

package.json

@@ -51,21 +51,21 @@
     "exists-file": "~3.0.2",
     "fast-safe-stringify": "~2.0.7",
     "flat": "~5.0.0",
-    "gatsby": "~2.22.15",
-    "gatsby-plugin-canonical-urls": "~2.3.2",
-    "gatsby-plugin-catch-links": "~2.3.3",
-    "gatsby-plugin-google-analytics": "~2.3.2",
-    "gatsby-plugin-react-helmet": "~3.3.2",
-    "gatsby-plugin-remove-trailing-slashes": "~2.3.3",
-    "gatsby-plugin-sass": "~2.3.2",
-    "gatsby-plugin-sitemap": "~2.4.3",
-    "gatsby-plugin-styled-components": "~3.3.2",
+    "gatsby": "~2.23.0",
+    "gatsby-plugin-canonical-urls": "~2.3.3",
+    "gatsby-plugin-catch-links": "~2.3.4",
+    "gatsby-plugin-google-analytics": "~2.3.3",
+    "gatsby-plugin-react-helmet": "~3.3.3",
+    "gatsby-plugin-remove-trailing-slashes": "~2.3.4",
+    "gatsby-plugin-sass": "~2.3.3",
+    "gatsby-plugin-sitemap": "~2.4.4",
+    "gatsby-plugin-styled-components": "~3.3.3",
     "gatsby-plugin-zeit-now": "~0.3.0",
-    "gatsby-source-filesystem": "~2.3.8",
-    "gatsby-transformer-javascript-frontmatter": "~2.3.3",
-    "gatsby-transformer-json": "~2.4.3",
-    "gatsby-transformer-remark": "~2.8.13",
-    "gatsby-transformer-yaml": "~2.4.2",
+    "gatsby-source-filesystem": "~2.3.10",
+    "gatsby-transformer-javascript-frontmatter": "~2.3.4",
+    "gatsby-transformer-json": "~2.4.4",
+    "gatsby-transformer-remark": "~2.8.14",
+    "gatsby-transformer-yaml": "~2.4.3",
     "git-jiggy": "~1.1.1",
     "github-slugger": "~1.3.0",
     "humanize-url": "~2.1.0",