diff --git a/samples/js-pi-canvas/package-lock.json b/samples/js-pi-canvas/package-lock.json
index 92f0347bf7..76bd7719da 100644
--- a/samples/js-pi-canvas/package-lock.json
+++ b/samples/js-pi-canvas/package-lock.json
@@ -16,7 +16,7 @@
         "@microsoft/sp-webpart-base": "1.22.0",
         "@pnp/spfx-property-controls": "^3.18.0",
         "@pnp/telemetry-js": "^2.0.0",
-        "dompurify": "^3.3.1",
+        "dompurify": "^3.4.0",
         "jquery": "^3.7.1",
         "marked": "^15.0.0",
         "mermaid": "^11.4.0",
@@ -12533,9 +12533,9 @@
       }
     },
     "node_modules/dompurify": {
-      "version": "3.3.1",
-      "resolved": "https://registry.npmjs.org/dompurify/-/dompurify-3.3.1.tgz",
-      "integrity": "sha512-qkdCKzLNtrgPFP1Vo+98FRzJnBRGe4ffyCea9IwHB1fyxPOeNTHpLKYGd4Uk9xvNoH0ZoOjwZxNptyMwqrId1Q==",
+      "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/samples/js-pi-canvas/package.json b/samples/js-pi-canvas/package.json
index 4c5ffe391b..33a32e6263 100644
--- a/samples/js-pi-canvas/package.json
+++ b/samples/js-pi-canvas/package.json
@@ -46,7 +46,7 @@
     "@microsoft/sp-webpart-base": "1.22.0",
     "@pnp/spfx-property-controls": "^3.18.0",
     "@pnp/telemetry-js": "^2.0.0",
-    "dompurify": "^3.3.1",
+    "dompurify": "^3.4.0",
     "jquery": "^3.7.1",
     "marked": "^15.0.0",
     "mermaid": "^11.4.0",