diff --git a/CANQUA2018/package.json b/CANQUA2018/package.json
index 614a4e3..1b3ed52 100644
--- a/CANQUA2018/package.json
+++ b/CANQUA2018/package.json
@@ -23,7 +23,7 @@
     "node": ">=4.0.0"
   },
   "devDependencies": {
-    "express": "^4.15.2",
+    "express": "^5.2.1",
     "grunt": "^1.0.1",
     "grunt-autoprefixer": "^3.0.4",
     "grunt-cli": "^1.2.0",
@@ -37,7 +37,7 @@
     "grunt-retire": "^1.0.7",
     "grunt-zip": "~0.17.1",
     "mustache": "^2.3.0",
-    "socket.io": "^1.7.3"
+    "socket.io": "^4.8.3"
   },
   "license": "MIT"
 }
diff --git a/CANQUA2018/plugin/multiplex/package.json b/CANQUA2018/plugin/multiplex/package.json
index bbed77a..8bfc8d5 100644
--- a/CANQUA2018/plugin/multiplex/package.json
+++ b/CANQUA2018/plugin/multiplex/package.json
@@ -10,10 +10,10 @@
     "node": "~4.1.1"
   },
   "dependencies": {
-    "express": "~4.13.3",
+    "express": "~5.2.1",
     "grunt-cli": "~0.1.13",
     "mustache": "~2.2.1",
-    "socket.io": "~1.3.7"
+    "socket.io": "~4.8.3"
   },
   "license": "MIT"
 }
diff --git a/CANQUA2018/reveal.js-master/package.json b/CANQUA2018/reveal.js-master/package.json
index 614a4e3..1b3ed52 100644
--- a/CANQUA2018/reveal.js-master/package.json
+++ b/CANQUA2018/reveal.js-master/package.json
@@ -23,7 +23,7 @@
     "node": ">=4.0.0"
   },
   "devDependencies": {
-    "express": "^4.15.2",
+    "express": "^5.2.1",
     "grunt": "^1.0.1",
     "grunt-autoprefixer": "^3.0.4",
     "grunt-cli": "^1.2.0",
@@ -37,7 +37,7 @@
     "grunt-retire": "^1.0.7",
     "grunt-zip": "~0.17.1",
     "mustache": "^2.3.0",
-    "socket.io": "^1.7.3"
+    "socket.io": "^4.8.3"
   },
   "license": "MIT"
 }
diff --git a/CANQUA2018/reveal.js-master/plugin/multiplex/package.json b/CANQUA2018/reveal.js-master/plugin/multiplex/package.json
index bbed77a..8bfc8d5 100644
--- a/CANQUA2018/reveal.js-master/plugin/multiplex/package.json
+++ b/CANQUA2018/reveal.js-master/plugin/multiplex/package.json
@@ -10,10 +10,10 @@
     "node": "~4.1.1"
   },
   "dependencies": {
-    "express": "~4.13.3",
+    "express": "~5.2.1",
     "grunt-cli": "~0.1.13",
     "mustache": "~2.2.1",
-    "socket.io": "~1.3.7"
+    "socket.io": "~4.8.3"
   },
   "license": "MIT"
 }