diff --git a/explorer/package-lock.json b/explorer/package-lock.json
index a023dde486..5796401d08 100644
--- a/explorer/package-lock.json
+++ b/explorer/package-lock.json
@@ -5177,9 +5177,9 @@
       "integrity": "sha1-G2gcIf+EAzyCZUMJBolCDRhxUdw="
     },
     "chai": {
-      "version": "4.3.3",
-      "resolved": "https://registry.npmjs.org/chai/-/chai-4.3.3.tgz",
-      "integrity": "sha512-MPSLOZwxxnA0DhLE84klnGPojWFK5KuhP7/j5dTsxpr2S3XlkqJP5WbyYl1gCTWvG2Z5N+HD4F472WsbEZL6Pw==",
+      "version": "4.3.4",
+      "resolved": "https://registry.npmjs.org/chai/-/chai-4.3.4.tgz",
+      "integrity": "sha512-yS5H68VYOCtN1cjfwumDSuzn/9c+yza4f3reKXlE5rUg7SFcCEy90gJvydNgOYtblyf4Zi6jIWRnXOgErta0KA==",
       "requires": {
         "assertion-error": "^1.1.0",
         "check-error": "^1.0.2",
diff --git a/explorer/package.json b/explorer/package.json
index 208548d56e..ab81a6bd13 100644
--- a/explorer/package.json
+++ b/explorer/package.json
@@ -27,7 +27,7 @@
     "bn.js": "^5.2.0",
     "bootstrap": "^4.6.0",
     "bs58": "^4.0.1",
-    "chai": "^4.3.3",
+    "chai": "^4.3.4",
     "chart.js": "^2.9.4",
     "classnames": "2.2.6",
     "cross-fetch": "^3.0.6",