diff --git a/primus/package.json b/primus/package.json
index 13e2b228..120fea03 100644
--- a/primus/package.json
+++ b/primus/package.json
@@ -21,7 +21,7 @@
   "dependencies": {
     "@types/amqplib": "^0.5.11",
     "amqplib": "^0.5.3",
-    "engine.io": "^3.3.2",
+    "engine.io": "^3.6.1",
     "loglevel": "^1.6.1",
     "mongodb": "^3.1.13",
     "primus": "^7.3.2",
diff --git a/primus/yarn.lock b/primus/yarn.lock
index 2f4552b6..c4dd29fb 100644
--- a/primus/yarn.lock
+++ b/primus/yarn.lock
@@ -245,10 +245,10 @@ engine.io-parser@~2.2.0:
     blob "0.0.5"
     has-binary2 "~1.0.2"
 
-engine.io@^3.3.2:
-  version "3.5.0"
-  resolved "https://registry.yarnpkg.com/engine.io/-/engine.io-3.5.0.tgz#9d6b985c8a39b1fe87cd91eb014de0552259821b"
-  integrity sha512-21HlvPUKaitDGE4GXNtQ7PLP0Sz4aWLddMPw2VTyFz1FVZqu/kZsJUO8WNpKuE/OCL7nkfRaOui2ZCJloGznGA==
+engine.io@^3.6.1:
+  version "3.6.1"
+  resolved "https://registry.yarnpkg.com/engine.io/-/engine.io-3.6.1.tgz#7ca4c7779c20865e30d208751bde08ca1e800256"
+  integrity sha512-dfs8EVg/i7QjFsXxn7cCRQ+Wai1G1TlEvHhdYEi80fxn5R1vZ2K661O6v/rezj1FP234SZ14r9CmJke99iYDGg==
   dependencies:
     accepts "~1.3.4"
     base64id "2.0.0"