diff --git a/socket.io/socket-express-app/package-lock.json b/socket.io/socket-express-app/package-lock.json
index 2f393fc..40b781a 100644
--- a/socket.io/socket-express-app/package-lock.json
+++ b/socket.io/socket-express-app/package-lock.json
@@ -167,9 +167,9 @@
       }
     },
     "engine.io-client": {
-      "version": "3.5.0",
-      "resolved": "https://registry.npmjs.org/engine.io-client/-/engine.io-client-3.5.0.tgz",
-      "integrity": "sha512-12wPRfMrugVw/DNyJk34GQ5vIVArEcVMXWugQGGuw2XxUSztFNmJggZmv8IZlLyEdnpO1QB9LkcjeWewO2vxtA==",
+      "version": "3.5.3",
+      "resolved": "https://registry.npmjs.org/engine.io-client/-/engine.io-client-3.5.3.tgz",
+      "integrity": "sha512-qsgyc/CEhJ6cgMUwxRRtOndGVhIu5hpL5tR4umSpmX/MvkFoIxUTM7oFMDQumHNzlNLwSVy6qhstFPoWTf7dOw==",
       "requires": {
         "component-emitter": "~1.3.0",
         "component-inherit": "0.0.3",
@@ -180,7 +180,7 @@
         "parseqs": "0.0.6",
         "parseuri": "0.0.6",
         "ws": "~7.4.2",
-        "xmlhttprequest-ssl": "~1.5.4",
+        "xmlhttprequest-ssl": "~1.6.2",
         "yeast": "0.1.2"
       },
       "dependencies": {
@@ -637,9 +637,9 @@
       "integrity": "sha512-T4tewALS3+qsrpGI/8dqNMLIVdq/g/85U98HPMa6F0m6xTbvhXU6RCQLqPH3+SlomNV/LdY6RXEbBpMH6EOJnA=="
     },
     "xmlhttprequest-ssl": {
-      "version": "1.5.5",
-      "resolved": "https://registry.npmjs.org/xmlhttprequest-ssl/-/xmlhttprequest-ssl-1.5.5.tgz",
-      "integrity": "sha1-wodrBhaKrcQOV9l+gRkayPQ5iz4="
+      "version": "1.6.3",
+      "resolved": "https://registry.npmjs.org/xmlhttprequest-ssl/-/xmlhttprequest-ssl-1.6.3.tgz",
+      "integrity": "sha512-3XfeQE/wNkvrIktn2Kf0869fC0BN6UpydVasGIeSm2B1Llihf7/0UfZM+eCkOw3P7bP4+qPgqhm7ZoxuJtFU0Q=="
     },
     "yeast": {
       "version": "0.1.2",