diff --git a/.changeset/renovate-c392808.md b/.changeset/renovate-c392808.md
new file mode 100644
index 0000000000..4d7f660d34
--- /dev/null
+++ b/.changeset/renovate-c392808.md
@@ -0,0 +1,8 @@
+---
+'@backstage/plugin-gcalendar': patch
+'@backstage/plugin-microsoft-calendar': patch
+'@backstage/plugin-techdocs': patch
+---
+
+Updated dependency `dompurify` to `^3.0.0`.
+Updated dependency `@types/dompurify` to `^3.0.0`.
diff --git a/plugins/gcalendar/package.json b/plugins/gcalendar/package.json
index d3f3fa31da..1720a35c77 100644
--- a/plugins/gcalendar/package.json
+++ b/plugins/gcalendar/package.json
@@ -38,7 +38,7 @@
     "@tanstack/react-query": "^4.1.3",
     "@types/react": "^16.13.1 || ^17.0.0 || ^18.0.0",
     "classnames": "^2.3.1",
-    "dompurify": "^2.3.6",
+    "dompurify": "^3.0.0",
     "lodash": "^4.17.21",
     "luxon": "^3.0.0",
     "material-ui-popup-state": "^1.9.3",
@@ -56,7 +56,7 @@
     "@testing-library/dom": "^9.0.0",
     "@testing-library/jest-dom": "^6.0.0",
     "@testing-library/react": "^14.0.0",
-    "@types/dompurify": "^2.3.3",
+    "@types/dompurify": "^3.0.0",
     "@types/sanitize-html": "^2.6.2"
   },
   "files": [
diff --git a/plugins/microsoft-calendar/package.json b/plugins/microsoft-calendar/package.json
index 25b8993713..aca81f8ad2 100644
--- a/plugins/microsoft-calendar/package.json
+++ b/plugins/microsoft-calendar/package.json
@@ -57,7 +57,7 @@
     "@tanstack/react-query": "^4.1.3",
     "@types/react": "^16.13.1 || ^17.0.0 || ^18.0.0",
     "classnames": "^2.3.1",
-    "dompurify": "^2.3.6",
+    "dompurify": "^3.0.0",
     "lodash": "^4.17.21",
     "luxon": "^3.0.0",
     "material-ui-popup-state": "^1.9.3",
diff --git a/plugins/techdocs/package.json b/plugins/techdocs/package.json
index 9629494159..3544b62589 100644
--- a/plugins/techdocs/package.json
+++ b/plugins/techdocs/package.json
@@ -66,7 +66,7 @@
     "@material-ui/lab": "4.0.0-alpha.61",
     "@material-ui/styles": "^4.10.0",
     "@types/react": "^16.13.1 || ^17.0.0 || ^18.0.0",
-    "dompurify": "^2.2.9",
+    "dompurify": "^3.0.0",
     "event-source-polyfill": "1.0.25",
     "git-url-parse": "^13.0.0",
     "jss": "~10.10.0",
@@ -89,7 +89,7 @@
     "@testing-library/jest-dom": "^6.0.0",
     "@testing-library/react": "^14.0.0",
     "@testing-library/user-event": "^14.0.0",
-    "@types/dompurify": "^2.2.2",
+    "@types/dompurify": "^3.0.0",
     "@types/event-source-polyfill": "^1.0.0",
     "canvas": "^2.10.2"
   },
diff --git a/yarn.lock b/yarn.lock
index fc745b69f1..015961b388 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -6793,11 +6793,11 @@ __metadata:
     "@testing-library/dom": ^9.0.0
     "@testing-library/jest-dom": ^6.0.0
     "@testing-library/react": ^14.0.0
-    "@types/dompurify": ^2.3.3
+    "@types/dompurify": ^3.0.0
     "@types/react": ^16.13.1 || ^17.0.0 || ^18.0.0
     "@types/sanitize-html": ^2.6.2
     classnames: ^2.3.1
-    dompurify: ^2.3.6
+    dompurify: ^3.0.0
     lodash: ^4.17.21
     luxon: ^3.0.0
     material-ui-popup-state: ^1.9.3
@@ -7661,7 +7661,7 @@ __metadata:
     "@testing-library/react": ^14.0.0
     "@types/react": ^16.13.1 || ^17.0.0 || ^18.0.0
     classnames: ^2.3.1
-    dompurify: ^2.3.6
+    dompurify: ^3.0.0
     lodash: ^4.17.21
     luxon: ^3.0.0
     material-ui-popup-state: ^1.9.3
@@ -9708,11 +9708,11 @@ __metadata:
     "@testing-library/jest-dom": ^6.0.0
     "@testing-library/react": ^14.0.0
     "@testing-library/user-event": ^14.0.0
-    "@types/dompurify": ^2.2.2
+    "@types/dompurify": ^3.0.0
     "@types/event-source-polyfill": ^1.0.0
     "@types/react": ^16.13.1 || ^17.0.0 || ^18.0.0
     canvas: ^2.10.2
-    dompurify: ^2.2.9
+    dompurify: ^3.0.0
     event-source-polyfill: 1.0.25
     git-url-parse: ^13.0.0
     jss: ~10.10.0
@@ -18433,7 +18433,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@types/dompurify@npm:^2.1.0, @types/dompurify@npm:^2.2.2, @types/dompurify@npm:^2.3.3":
+"@types/dompurify@npm:^2.1.0":
   version: 2.4.0
   resolution: "@types/dompurify@npm:2.4.0"
   dependencies:
@@ -18442,6 +18442,15 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@types/dompurify@npm:^3.0.0":
+  version: 3.0.5
+  resolution: "@types/dompurify@npm:3.0.5"
+  dependencies:
+    "@types/trusted-types": "*"
+  checksum: ffc34eca6a4536e1c8c16a47cce2623c5a118a9785492e71230052d92933ff096d14326ff449031e8dfaac509413222372d8f2b28786a13159de6241df716185
+  languageName: node
+  linkType: hard
+
 "@types/ejs@npm:^3.1.3":
   version: 3.1.5
   resolution: "@types/ejs@npm:3.1.5"
@@ -25503,14 +25512,14 @@ __metadata:
   languageName: node
   linkType: hard
 
-"dompurify@npm:=3.0.8":
+"dompurify@npm:=3.0.8, dompurify@npm:^3.0.0":
   version: 3.0.8
   resolution: "dompurify@npm:3.0.8"
   checksum: cac660ccae15a9603f06a85344da868a4c3732d8b57f7998de0f421eb4b9e67d916be52e9bb2a57b2f95b49e994cc50bcd06bb87f2cb2849cf058bdf15266237
   languageName: node
   linkType: hard
 
-"dompurify@npm:^2.2.7, dompurify@npm:^2.2.9, dompurify@npm:^2.3.6":
+"dompurify@npm:^2.2.7":
   version: 2.4.7
   resolution: "dompurify@npm:2.4.7"
   checksum: 13c047e772a1998348191554dda403950d45ef2ec75fa0b9915cc179ccea0a39ef780d283109bd72cf83a2a085af6c77664281d4d0106a737bc5f39906364efe