diff --git a/package-lock.json b/package-lock.json
index daafab1d5..30b43f03e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -99,26 +99,15 @@
       "integrity": "sha1-0ygVQE1olpn4Wk6k+odV3ROpYEg="
     },
     "chainpad-server": {
-      "version": "3.0.1",
-      "resolved": "https://registry.npmjs.org/chainpad-server/-/chainpad-server-3.0.1.tgz",
-      "integrity": "sha512-1r53gYvPlrnZg0vf91gP3pqHILfi67oSo3cnj7kcvC4Y/n4t6wS3QCCjXeNArOuZv/sIByuKkeo1929osr1/KA==",
+      "version": "3.0.2",
+      "resolved": "https://registry.npmjs.org/chainpad-server/-/chainpad-server-3.0.2.tgz",
+      "integrity": "sha512-c5aEljVAapDKKs0+Rt2jymKAszm8X4ZeLFNJj1yxflwBqoh0jr8OANYvbfjtNaYFe2Wdflp/1i4gibYX4IMc+g==",
       "requires": {
         "nthen": "^0.1.8",
         "pull-stream": "^3.6.9",
         "stream-to-pull-stream": "^1.7.3",
         "tweetnacl": "~0.12.2",
-        "ws": "^1.0.1"
-      },
-      "dependencies": {
-        "ws": {
-          "version": "1.1.5",
-          "resolved": "https://registry.npmjs.org/ws/-/ws-1.1.5.tgz",
-          "integrity": "sha512-o3KqipXNUdS7wpQzBHSe180lBGO60SoK0yVo3CYJgb2MkobuWuBX6dhkYP5ORCLd55y+SaflMOV5fqAB53ux4w==",
-          "requires": {
-            "options": ">=0.0.5",
-            "ultron": "1.0.x"
-          }
-        }
+        "ws": "^3.3.1"
       }
     },
     "chalk": {
@@ -827,11 +816,6 @@
         "wrappy": "1"
       }
     },
-    "options": {
-      "version": "0.0.6",
-      "resolved": "https://registry.npmjs.org/options/-/options-0.0.6.tgz",
-      "integrity": "sha1-7CLTEoBrtT5zF3Pnza788cZDEo8="
-    },
     "os-tmpdir": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/os-tmpdir/-/os-tmpdir-1.0.2.tgz",
@@ -1248,9 +1232,9 @@
       }
     },
     "ultron": {
-      "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/ultron/-/ultron-1.0.2.tgz",
-      "integrity": "sha1-rOEWq1V80Zc4ak6I9GhTeMiy5Po="
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/ultron/-/ultron-1.1.1.tgz",
+      "integrity": "sha512-UIEXBNeYmKptWH6z8ZnqTeS8fV74zG0/eRU9VGkpzz+LIJNs8W/zM/L+7ctCkRrgbNnnR0xxw4bKOr0cW0N0Og=="
     },
     "uniq": {
       "version": "1.0.1",
@@ -1298,13 +1282,6 @@
         "async-limiter": "~1.0.0",
         "safe-buffer": "~5.1.0",
         "ultron": "~1.1.0"
-      },
-      "dependencies": {
-        "ultron": {
-          "version": "1.1.1",
-          "resolved": "https://registry.npmjs.org/ultron/-/ultron-1.1.1.tgz",
-          "integrity": "sha512-UIEXBNeYmKptWH6z8ZnqTeS8fV74zG0/eRU9VGkpzz+LIJNs8W/zM/L+7ctCkRrgbNnnR0xxw4bKOr0cW0N0Og=="
-        }
       }
     },
     "xml2js": {
diff --git a/package.json b/package.json
index 12a3dd15c..06c187f11 100644
--- a/package.json
+++ b/package.json
@@ -8,7 +8,7 @@
     "url": "git://github.com/xwiki-labs/cryptpad.git"
   },
   "dependencies": {
-    "chainpad-server": "~3.0.0",
+    "chainpad-server": "~3.0.2",
     "express": "~4.16.0",
     "fs-extra": "^7.0.0",
     "nthen": "~0.1.0",