diff --git a/package-lock.json b/package-lock.json
index 6e063e20..968e68cc 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -38,7 +38,7 @@
         "d3": "7.9.0",
         "d3-hexbin": "^0.2.2",
         "diff": "^5.2.2",
-        "dompurify": "^3.3.3",
+        "dompurify": "^3.4.0",
         "es6-promisify": "^7.0.0",
         "escodegen": "^2.1.0",
         "esprima": "^4.0.1",
@@ -8296,9 +8296,9 @@
       }
     },
     "node_modules/dompurify": {
-      "version": "3.3.3",
-      "resolved": "https://registry.npmjs.org/dompurify/-/dompurify-3.3.3.tgz",
-      "integrity": "sha512-Oj6pzI2+RqBfFG+qOaOLbFXLQ90ARpcGG6UePL82bJLtdsa6CYJD7nmiU8MW9nQNOtCHV3lZ/Bzq1X0QYbBZCA==",
+      "version": "3.4.0",
+      "resolved": "https://registry.npmjs.org/dompurify/-/dompurify-3.4.0.tgz",
+      "integrity": "sha512-nolgK9JcaUXMSmW+j1yaSvaEaoXYHwWyGJlkoCTghc97KgGDDSnpoU/PlEnw63Ah+TGKFOyY+X5LnxaWbCSfXg==",
       "license": "(MPL-2.0 OR Apache-2.0)",
       "optionalDependencies": {
         "@types/trusted-types": "^2.0.7"
diff --git a/package.json b/package.json
index df6e7e97..9936c5cb 100644
--- a/package.json
+++ b/package.json
@@ -121,7 +121,7 @@
     "d3": "7.9.0",
     "d3-hexbin": "^0.2.2",
     "diff": "^5.2.2",
-    "dompurify": "^3.3.3",
+    "dompurify": "^3.4.0",
     "es6-promisify": "^7.0.0",
     "escodegen": "^2.1.0",
     "esprima": "^4.0.1",