diff --git a/token-swap/js/package-lock.json b/token-swap/js/package-lock.json
index eaad9b01..cf2248ae 100644
--- a/token-swap/js/package-lock.json
+++ b/token-swap/js/package-lock.json
@@ -1630,9 +1630,9 @@
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     },
     "@solana/web3.js": {
-      "version": "0.64.0",
-      "resolved": "https://registry.npmjs.org/@solana/web3.js/-/web3.js-0.64.0.tgz",
-      "integrity": "sha512-DlNzAXgNdk7k4Pt6CfcaAutaiXJiog9hxswtzItf0q/0/Um8JvDI1YjnMONE3IKI/jyjmTaxhsQHWAQE42KofQ==",
+      "version": "0.66.3",
+      "resolved": "https://registry.npmjs.org/@solana/web3.js/-/web3.js-0.66.3.tgz",
+      "integrity": "sha512-HYM1z9E6qVZKEHoLAn5tvL4SioruNB/mvNQhW2v7Va1WbhFArMIEh24SPC23LuEFZVe3PKwlT47zzUhdyua8tQ==",
       "requires": {
         "@babel/runtime": "^7.3.1",
         "bn.js": "^5.0.0",
@@ -1718,9 +1718,9 @@
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     "@types/lodash": {
-      "version": "4.14.158",
-      "resolved": "https://registry.npmjs.org/@types/lodash/-/lodash-4.14.158.tgz",
-      "integrity": "sha512-InCEXJNTv/59yO4VSfuvNrZHt7eeNtWQEgnieIA+mIC+MOWM9arOWG2eQ8Vhk6NbOre6/BidiXhkZYeDY9U35w=="
+      "version": "4.14.159",
+      "resolved": "https://registry.npmjs.org/@types/lodash/-/lodash-4.14.159.tgz",
+      "integrity": "sha512-gF7A72f7WQN33DpqOWw9geApQPh4M3PxluMtaHxWHXEGSN12/WbcEk/eNSqWNQcQhF66VSZ06vCF94CrHwXJDg=="
     },
     "@types/node": {
       "version": "12.12.53",
@@ -5352,9 +5352,9 @@
       }
     },
     "rpc-websockets": {
-      "version": "5.2.4",
-      "resolved": "https://registry.npmjs.org/rpc-websockets/-/rpc-websockets-5.2.4.tgz",
-      "integrity": "sha512-6jqeJK/18hPTsmeiN+K9O4miZiAmrIncgxfPXHwuGWs9BClA2zC3fOnTThRWo4blkrjH59oKKi0KMxSK+wdtNw==",
+      "version": "5.3.1",
+      "resolved": "https://registry.npmjs.org/rpc-websockets/-/rpc-websockets-5.3.1.tgz",
+      "integrity": "sha512-rIxEl1BbXRlIA9ON7EmY/2GUM7RLMy8zrUPTiLPFiYnYOz0I3PXfCmDDrge5vt4pW4oIcAXBDvgZuJ1jlY5+VA==",
       "requires": {
         "@babel/runtime": "^7.8.7",
         "assert-args": "^1.2.1",
diff --git a/token-swap/js/package.json b/token-swap/js/package.json
index 499c8297..139aed19 100644
--- a/token-swap/js/package.json
+++ b/token-swap/js/package.json
@@ -29,7 +29,7 @@
   "license": "MIT",
   "dependencies": {
     "@babel/runtime": "^7.11.2",
-    "@solana/web3.js": "^0.64.0",
+    "@solana/web3.js": "^0.66.3",
     "bn.js": "^5.0.0",
     "buffer-layout": "^1.2.0",
     "dotenv": "8.2.0",