diff --git a/explorer/package-lock.json b/explorer/package-lock.json
index c45aafa252..caafa5e83e 100644
--- a/explorer/package-lock.json
+++ b/explorer/package-lock.json
@@ -19,7 +19,7 @@
         "@testing-library/user-event": "^13.1.9",
         "@types/bn.js": "^5.1.0",
         "@types/bs58": "^4.0.1",
-        "@types/chai": "^4.2.20",
+        "@types/chai": "^4.2.21",
         "@types/chart.js": "^2.9.34",
         "@types/classnames": "^2.3.1",
         "@types/jest": "^26.0.24",
@@ -3793,9 +3793,9 @@
       }
     },
     "node_modules/@types/chai": {
-      "version": "4.2.20",
-      "resolved": "https://registry.npmjs.org/@types/chai/-/chai-4.2.20.tgz",
-      "integrity": "sha512-E121rHk/4BlcEwANZOwcHl8L/Sl0zyIFXJoyggXkl7FCT/4MTf5u25f+qiphe0V5ELaFIkCptgvbf4whCJUVMA=="
+      "version": "4.2.21",
+      "resolved": "https://registry.npmjs.org/@types/chai/-/chai-4.2.21.tgz",
+      "integrity": "sha512-yd+9qKmJxm496BOV9CMNaey8TWsikaZOwMRwPHQIjcOJM9oV+fi9ZMNw3JsVnbEEbo2gRTDnGEBv8pjyn67hNg=="
     },
     "node_modules/@types/chart.js": {
       "version": "2.9.34",
@@ -27766,9 +27766,9 @@
       }
     },
     "@types/chai": {
-      "version": "4.2.20",
-      "resolved": "https://registry.npmjs.org/@types/chai/-/chai-4.2.20.tgz",
-      "integrity": "sha512-E121rHk/4BlcEwANZOwcHl8L/Sl0zyIFXJoyggXkl7FCT/4MTf5u25f+qiphe0V5ELaFIkCptgvbf4whCJUVMA=="
+      "version": "4.2.21",
+      "resolved": "https://registry.npmjs.org/@types/chai/-/chai-4.2.21.tgz",
+      "integrity": "sha512-yd+9qKmJxm496BOV9CMNaey8TWsikaZOwMRwPHQIjcOJM9oV+fi9ZMNw3JsVnbEEbo2gRTDnGEBv8pjyn67hNg=="
     },
     "@types/chart.js": {
       "version": "2.9.34",
diff --git a/explorer/package.json b/explorer/package.json
index c9539d00ba..61f6e79afe 100644
--- a/explorer/package.json
+++ b/explorer/package.json
@@ -15,7 +15,7 @@
     "@testing-library/user-event": "^13.1.9",
     "@types/bn.js": "^5.1.0",
     "@types/bs58": "^4.0.1",
-    "@types/chai": "^4.2.20",
+    "@types/chai": "^4.2.21",
     "@types/chart.js": "^2.9.34",
     "@types/classnames": "^2.3.1",
     "@types/jest": "^26.0.24",