diff --git a/package-lock.json b/package-lock.json
index c8b578a532..9fc1677f8f 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -32,7 +32,7 @@
         "csv": "^5.3.2",
         "data-structures": "^1.4.2",
         "date-fns": "^2.12.0",
-        "dompurify": "^2.3.8",
+        "dompurify": "^2.5.6",
         "dox": "^0.9.0",
         "ent": "^2.2.0",
         "ethercalc-client": "github:oaeproject/ethercalc-client#master",
@@ -4264,9 +4264,9 @@
       }
     },
     "node_modules/dompurify": {
-      "version": "2.3.8",
-      "resolved": "https://registry.npmjs.org/dompurify/-/dompurify-2.3.8.tgz",
-      "integrity": "sha512-eVhaWoVibIzqdGYjwsBWodIQIaXFSB+cKDf4cfxLMsK0xiud6SE+/WCVx/Xw/UwQsa4cS3T2eITcdtmTg2UKcw=="
+      "version": "2.5.6",
+      "resolved": "https://registry.npmjs.org/dompurify/-/dompurify-2.5.6.tgz",
+      "integrity": "sha512-zUTaUBO8pY4+iJMPE1B9XlO2tXVYIcEA4SNGtvDELzTSCQO7RzH+j7S180BmhmJId78lqGU2z19vgVx2Sxs/PQ=="
     },
     "node_modules/domutils": {
       "version": "1.5.1",
@@ -20609,9 +20609,9 @@
       }
     },
     "dompurify": {
-      "version": "2.3.8",
-      "resolved": "https://registry.npmjs.org/dompurify/-/dompurify-2.3.8.tgz",
-      "integrity": "sha512-eVhaWoVibIzqdGYjwsBWodIQIaXFSB+cKDf4cfxLMsK0xiud6SE+/WCVx/Xw/UwQsa4cS3T2eITcdtmTg2UKcw=="
+      "version": "2.5.6",
+      "resolved": "https://registry.npmjs.org/dompurify/-/dompurify-2.5.6.tgz",
+      "integrity": "sha512-zUTaUBO8pY4+iJMPE1B9XlO2tXVYIcEA4SNGtvDELzTSCQO7RzH+j7S180BmhmJId78lqGU2z19vgVx2Sxs/PQ=="
     },
     "domutils": {
       "version": "1.5.1",
diff --git a/package.json b/package.json
index b4289f3e0f..30021c40c6 100644
--- a/package.json
+++ b/package.json
@@ -45,7 +45,7 @@
     "csv": "^5.3.2",
     "data-structures": "^1.4.2",
     "date-fns": "^2.12.0",
-    "dompurify": "^2.3.8",
+    "dompurify": "^2.5.6",
     "dox": "^0.9.0",
     "ent": "^2.2.0",
     "ethercalc-client": "github:oaeproject/ethercalc-client#master",