diff --git a/package-lock.json b/package-lock.json
index 50d1be85..3eadbf8c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -14525,15 +14525,9 @@
       "license": "MIT"
     },
     "node_modules/github-slugger": {
-      "version": "1.3.0",
-      "license": "ISC",
-      "dependencies": {
-        "emoji-regex": ">=6.0.0 <=6.1.1"
-      }
-    },
-    "node_modules/github-slugger/node_modules/emoji-regex": {
-      "version": "6.1.1",
-      "license": "MIT"
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/github-slugger/-/github-slugger-2.0.0.tgz",
+      "integrity": "sha512-IaOQ9puYtjrkq7Y0Ygl9KDZnrf/aiUJYUpVf89y8kyaxbRG7Y1SrX/jaumrv81vc61+kiMempujsM3Yw7w5qcw=="
     },
     "node_modules/glob": {
       "version": "7.1.6",
@@ -19009,6 +19003,11 @@
         "unist-util-visit": "^1.1.0"
       }
     },
+    "node_modules/mdast-util-toc/node_modules/github-slugger": {
+      "version": "1.5.0",
+      "resolved": "https://registry.npmjs.org/github-slugger/-/github-slugger-1.5.0.tgz",
+      "integrity": "sha512-wIh+gKBI9Nshz2o46B0B3f5k/W+WI9ZAv6y5Dn5WJ5SK1t0TnDimB4WE5rmTD05ZAIn8HALCZVmCsvj0w0v0lw=="
+    },
     "node_modules/mdast-util-toc/node_modules/unist-util-is": {
       "version": "2.1.3",
       "license": "MIT"
@@ -27611,7 +27610,7 @@
     },
     "theme": {
       "name": "@primer/gatsby-theme-doctocat",
-      "version": "5.1.0",
+      "version": "5.1.1",
       "license": "MIT",
       "dependencies": {
         "@babel/core": "^7.19.1",
@@ -27645,7 +27644,7 @@
         "gatsby-source-filesystem": "^3.14.0",
         "gatsby-transformer-yaml": "^3.14.0",
         "get-pkg-repo": "^5.0.0",
-        "github-slugger": "^1.2.1",
+        "github-slugger": "^2.0.0",
         "html-react-parser": "^5.0.3",
         "jest": "^29.7.0",
         "lodash.debounce": "4.0.8",
diff --git a/theme/package.json b/theme/package.json
index 592c4800..0d5e356e 100644
--- a/theme/package.json
+++ b/theme/package.json
@@ -65,7 +65,7 @@
     "gatsby-source-filesystem": "^3.14.0",
     "gatsby-transformer-yaml": "^3.14.0",
     "get-pkg-repo": "^5.0.0",
-    "github-slugger": "^1.2.1",
+    "github-slugger": "^2.0.0",
     "html-react-parser": "^5.0.3",
     "jest": "^29.7.0",
     "lodash.debounce": "4.0.8",