diff --git a/packages/gatsby-plugin-mdx/package.json b/packages/gatsby-plugin-mdx/package.json
index 3184864e21c91..70954ffb64b53 100644
--- a/packages/gatsby-plugin-mdx/package.json
+++ b/packages/gatsby-plugin-mdx/package.json
@@ -32,27 +32,27 @@
     "change-case": "^3.1.0",
     "core-js": "^3.17.2",
     "dataloader": "^1.4.0",
-    "debug": "^4.3.1",
+    "debug": "^4.3.4",
     "escape-string-regexp": "^1.0.5",
-    "eval": "^0.1.4",
+    "eval": "^0.1.7",
     "fs-extra": "^10.0.0",
     "gatsby-core-utils": "^2.14.0-next.1",
-    "gray-matter": "^4.0.2",
-    "json5": "^2.1.3",
+    "gray-matter": "^4.0.3",
+    "json5": "^2.2.1",
     "loader-utils": "^1.4.0",
     "lodash": "^4.17.21",
     "mdast-util-to-string": "^1.1.0",
     "mdast-util-toc": "^3.1.0",
-    "mime": "^2.4.6",
+    "mime": "^2.6.0",
     "p-queue": "^6.6.2",
-    "pretty-bytes": "^5.3.0",
+    "pretty-bytes": "^5.6.0",
     "remark": "^10.0.1",
     "remark-retext": "^3.1.3",
     "retext-english": "^3.0.4",
-    "slugify": "^1.4.4",
+    "slugify": "^1.6.5",
     "static-site-generator-webpack-plugin": "^3.4.2",
     "style-to-object": "^0.3.0",
-    "underscore.string": "^3.3.5",
+    "underscore.string": "^3.3.6",
     "unified": "^8.4.2",
     "unist-util-map": "^1.0.5",
     "unist-util-remove": "^1.0.3",
diff --git a/yarn.lock b/yarn.lock
index 220822d8cb383..9d76cee5b196a 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -9835,10 +9835,10 @@ debug@3.1.0, debug@~3.1.0:
   dependencies:
     ms "2.0.0"
 
-debug@4, debug@^4.0.0, debug@^4.0.1, debug@^4.1.0, debug@^4.1.1, debug@^4.2.0, debug@^4.3.1, debug@^4.3.2, debug@^4.3.3, debug@~4.3.1, debug@~4.3.2:
-  version "4.3.3"
-  resolved "https://registry.yarnpkg.com/debug/-/debug-4.3.3.tgz#04266e0b70a98d4462e6e288e38259213332b664"
-  integrity sha512-/zxw5+vh1Tfv+4Qn7a5nsbcJKPaSvCDhojn6FEl9vupwK2VCSDtEiEtqr8DFtzYFOdz63LBkxec7DYuc2jon6Q==
+debug@4, debug@^4.0.0, debug@^4.0.1, debug@^4.1.0, debug@^4.1.1, debug@^4.2.0, debug@^4.3.1, debug@^4.3.2, debug@^4.3.3, debug@^4.3.4, debug@~4.3.1, debug@~4.3.2:
+  version "4.3.4"
+  resolved "https://registry.yarnpkg.com/debug/-/debug-4.3.4.tgz#1319f6579357f2338d3337d2cdd4914bb5dcc865"
+  integrity sha512-PRWFHuSU3eDtQJPvnNY7Jcket1j0t5OuOsFzPPzsekD52Zl8qUfFIPEiswXqIvHWGVHOgX+7G/vCNNhehwxfkQ==
   dependencies:
     ms "2.1.2"
 
@@ -11353,11 +11353,12 @@ etag@~1.8.1:
   version "1.8.1"
   resolved "https://registry.yarnpkg.com/etag/-/etag-1.8.1.tgz#41ae2eeb65efa62268aebfea83ac7d79299b0887"
 
-eval@^0.1.0, eval@^0.1.4:
-  version "0.1.4"
-  resolved "https://registry.npmjs.org/eval/-/eval-0.1.4.tgz#e05dbe0dab4b9330215cbb7bf4886eb24bd58700"
-  integrity sha512-npGsebJejyjMRnLdFu+T/97dnigqIU0Ov3IGrZ8ygd1v7RL1vGkEKtvyWZobqUH1AQgKlg0Yqqe2BtMA9/QZLw==
+eval@^0.1.0, eval@^0.1.7:
+  version "0.1.7"
+  resolved "https://registry.yarnpkg.com/eval/-/eval-0.1.7.tgz#106f75f9d6feb10a68adeaf97a43a582c58e0b2f"
+  integrity sha512-ju9MU0XxhlibL4H5Ln8jCPJONGOS7unrBY+x1ICub09Ohg0tWTcBVkqgbJpRmczNobY8RxqCdar7hkdg5msVCA==
   dependencies:
+    "@types/node" "*"
     require-like ">= 0.1.1"
 
 event-emitter@^0.3.5:
@@ -13272,12 +13273,12 @@ gray-matter@^2.1.0:
     js-yaml "^3.8.1"
     toml "^2.3.2"
 
-gray-matter@^4.0.2:
-  version "4.0.2"
-  resolved "https://registry.yarnpkg.com/gray-matter/-/gray-matter-4.0.2.tgz#9aa379e3acaf421193fce7d2a28cebd4518ac454"
-  integrity sha512-7hB/+LxrOjq/dd8APlK0r24uL/67w7SkYnfwhNFwg/VDIGWGmduTDYf3WNstLW2fbbmRwrDGCVSJ2isuf2+4Hw==
+gray-matter@^4.0.2, gray-matter@^4.0.3:
+  version "4.0.3"
+  resolved "https://registry.yarnpkg.com/gray-matter/-/gray-matter-4.0.3.tgz#e893c064825de73ea1f5f7d88c7a9f7274288798"
+  integrity sha512-5v6yZd4JK3eMI3FqqCouswVqwugaA9r4dNZB1wwcmrD02QkV5H0y7XBQW8QwQqEaZY1pM9aqORSORhJRdNK44Q==
   dependencies:
-    js-yaml "^3.11.0"
+    js-yaml "^3.13.1"
     kind-of "^6.0.2"
     section-matter "^1.0.0"
     strip-bom-string "^1.0.0"
@@ -16306,7 +16307,7 @@ js-tokens@^3.0.2:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/js-tokens/-/js-tokens-3.0.2.tgz#9866df395102130e38f7f996bceb65443209c25b"
 
-js-yaml@3.14.1, js-yaml@^3.10.0, js-yaml@^3.11.0, js-yaml@^3.13.1, js-yaml@^3.14.1, js-yaml@^3.6.1, js-yaml@^3.8.1:
+js-yaml@3.14.1, js-yaml@^3.10.0, js-yaml@^3.13.1, js-yaml@^3.14.1, js-yaml@^3.6.1, js-yaml@^3.8.1:
   version "3.14.1"
   resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-3.14.1.tgz#dae812fdb3825fa306609a8717383c50c36a0537"
   integrity sha512-okMH7OXXJ7YrN9Ok3/SXrnu4iX9yOk+25nqX4imS2npuvTYDmo/QEZoqwZkYaIDk3jVvBOTOIEgEhaLOynBS9g==
@@ -16558,12 +16559,10 @@ json5@^1.0.1:
   dependencies:
     minimist "^1.2.0"
 
-json5@^2.0.0, json5@^2.1.0, json5@^2.1.2, json5@^2.1.3, json5@^2.2.0:
-  version "2.2.0"
-  resolved "https://registry.yarnpkg.com/json5/-/json5-2.2.0.tgz#2dfefe720c6ba525d9ebd909950f0515316c89a3"
-  integrity sha512-f+8cldu7X/y7RAJurMEJmdoKXGB/X550w2Nr3tTbezL6RwEE/iMcm+tZnXeoZtKuOq6ft8+CqzEkrIgx1fPoQA==
-  dependencies:
-    minimist "^1.2.5"
+json5@^2.0.0, json5@^2.1.0, json5@^2.1.2, json5@^2.2.0, json5@^2.2.1:
+  version "2.2.1"
+  resolved "https://registry.yarnpkg.com/json5/-/json5-2.2.1.tgz#655d50ed1e6f95ad1a3caababd2b0efda10b395c"
+  integrity sha512-1hqLFMSrGHRHxav9q9gNjJ5EXznIxGVO09xQRrwplcS8qs28pZ8s8hupZAmqDwZUmVZ2Qb2jnyPOWcDH8m8dlA==
 
 jsonfile@^2.1.0:
   version "2.4.0"
@@ -18922,11 +18921,16 @@ mime@1.6.0, mime@^1.3.4, mime@^1.4.1:
   version "1.6.0"
   resolved "https://registry.yarnpkg.com/mime/-/mime-1.6.0.tgz#32cd9e5c64553bd58d19a568af452acff04981b1"
 
-mime@2.5.2, mime@^2.0.3, mime@^2.2.0, mime@^2.4.4, mime@^2.4.6, mime@^2.5.2:
+mime@2.5.2:
   version "2.5.2"
   resolved "https://registry.yarnpkg.com/mime/-/mime-2.5.2.tgz#6e3dc6cc2b9510643830e5f19d5cb753da5eeabe"
   integrity sha512-tqkh47FzKeCPD2PUiPB6pkbMzsCasjxAfC62/Wap5qrUWcb+sFasXUC5I3gYM5iBM8v/Qpn4UK0x+j0iHyFPDg==
 
+mime@^2.0.3, mime@^2.2.0, mime@^2.4.4, mime@^2.4.6, mime@^2.5.2, mime@^2.6.0:
+  version "2.6.0"
+  resolved "https://registry.yarnpkg.com/mime/-/mime-2.6.0.tgz#a2a682a95cd4d0cb1d6257e28f83da7e35800367"
+  integrity sha512-USPkMeET31rOMiarsBNIHZKLGgvKc/LrjofAnBlOttf5ajRvqiRA8QsenbcooctK6d6Ts6aqZXBA+XbkKthiQg==
+
 mimic-fn@^1.0.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/mimic-fn/-/mimic-fn-1.2.0.tgz#820c86a39334640e99516928bd03fca88057d022"
@@ -21720,10 +21724,10 @@ pretty-bytes@^4.0.2:
   version "4.0.2"
   resolved "https://registry.yarnpkg.com/pretty-bytes/-/pretty-bytes-4.0.2.tgz#b2bf82e7350d65c6c33aa95aaa5a4f6327f61cd9"
 
-pretty-bytes@^5.1.0, pretty-bytes@^5.3.0, pretty-bytes@^5.4.1:
-  version "5.4.1"
-  resolved "https://registry.yarnpkg.com/pretty-bytes/-/pretty-bytes-5.4.1.tgz#cd89f79bbcef21e3d21eb0da68ffe93f803e884b"
-  integrity sha512-s1Iam6Gwz3JI5Hweaz4GoCD1WUNUIyzePFy5+Js2hjwGVt2Z79wNN+ZKOZ2vB6C+Xs6njyB84Z1IthQg8d9LxA==
+pretty-bytes@^5.1.0, pretty-bytes@^5.4.1, pretty-bytes@^5.6.0:
+  version "5.6.0"
+  resolved "https://registry.yarnpkg.com/pretty-bytes/-/pretty-bytes-5.6.0.tgz#356256f643804773c82f64723fe78c92c62beaeb"
+  integrity sha512-FFw039TmrBqFK8ma/7OL3sDz/VytdtJr044/QUJtH0wK9lb9jLq9tJyIxUwtQJHwar2BqtiA4iCWSwo9JLkzFg==
 
 pretty-error@^2.1.1:
   version "2.1.1"
@@ -24993,10 +24997,10 @@ slide@^1.1.6:
   version "1.1.6"
   resolved "https://registry.yarnpkg.com/slide/-/slide-1.1.6.tgz#56eb027d65b4d2dce6cb2e2d32c4d4afc9e1d707"
 
-slugify@^1.4.4:
-  version "1.4.4"
-  resolved "https://registry.yarnpkg.com/slugify/-/slugify-1.4.4.tgz#2f032ffa52b1e1ca2a27737c1ce47baae3d0883a"
-  integrity sha512-N2+9NJ8JzfRMh6PQLrBeDEnVDQZSytE/W4BTC4fNNPmO90Uu58uNwSlIJSs+lmPgWsaAF79WLhVPe5tuy7spjw==
+slugify@^1.4.4, slugify@^1.6.5:
+  version "1.6.5"
+  resolved "https://registry.yarnpkg.com/slugify/-/slugify-1.6.5.tgz#c8f5c072bf2135b80703589b39a3d41451fbe8c8"
+  integrity sha512-8mo9bslnBO3tr5PEVFzMPIWwWnipGS0xVbYf65zxDqfNwmzYn1LpiKNrR6DlClusuvo+hDHd1zKpmfAe83NQSQ==
 
 smart-buffer@^4.1.0:
   version "4.1.0"
@@ -25281,9 +25285,10 @@ split@^1.0.0:
   dependencies:
     through "2"
 
-sprintf-js@^1.0.3:
-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/sprintf-js/-/sprintf-js-1.1.1.tgz#36be78320afe5801f6cea3ee78b6e5aab940ea0c"
+sprintf-js@^1.1.1:
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/sprintf-js/-/sprintf-js-1.1.2.tgz#da1765262bf8c0f571749f2ad6c26300207ae673"
+  integrity sha512-VE0SOVEHCk7Qc8ulkWw3ntAzXuqf7S2lvwQaDLRnUeIEaKNQJzV6BwmLKhOqT61aGhfUMrXeaBk+oDGCzvhcug==
 
 sprintf-js@~1.0.2:
   version "1.0.3"
@@ -27074,11 +27079,12 @@ undefsafe@^2.0.5:
   resolved "https://registry.yarnpkg.com/undefsafe/-/undefsafe-2.0.5.tgz#38733b9327bdcd226db889fb723a6efd162e6e2c"
   integrity sha512-WxONCrssBM8TSPRqN5EmsjVrsv4A8X12J4ArBiiayv3DyyG3ZlIg6yysuuSYdZsVz3TKcTg2fd//Ujd4CHV1iA==
 
-underscore.string@^3.3.5:
-  version "3.3.5"
-  resolved "https://registry.yarnpkg.com/underscore.string/-/underscore.string-3.3.5.tgz#fc2ad255b8bd309e239cbc5816fd23a9b7ea4023"
+underscore.string@^3.3.5, underscore.string@^3.3.6:
+  version "3.3.6"
+  resolved "https://registry.yarnpkg.com/underscore.string/-/underscore.string-3.3.6.tgz#ad8cf23d7423cb3b53b898476117588f4e2f9159"
+  integrity sha512-VoC83HWXmCrF6rgkyxS9GHv8W9Q5nhMKho+OadDJGzL2oDYbYEppBaCMH6pFlwLeqj2QS+hhkw2kpXkSdD1JxQ==
   dependencies:
-    sprintf-js "^1.0.3"
+    sprintf-js "^1.1.1"
     util-deprecate "^1.0.2"
 
 underscore@^1.8.3: