diff --git a/package.json b/package.json
index 7b29e02e2..dc387077b 100644
--- a/package.json
+++ b/package.json
@@ -95,7 +95,7 @@
     "preact": "^8.2.5",
     "preact-textarea-autosize": "^4.0.7",
     "prop-types": "^15.6.2",
-    "pusher-js": "^4.2.2",
+    "pusher-js": "^4.3.0",
     "twilio-video": "^1.10.0"
   }
 }
diff --git a/yarn.lock b/yarn.lock
index 31054b98c..6b775e843 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -8002,11 +8002,13 @@ punycode@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/punycode/-/punycode-2.1.0.tgz#5f863edc89b96db09074bad7947bf09056ca4e7d"
 
-pusher-js@^4.2.2:
-  version "4.2.2"
-  resolved "https://registry.yarnpkg.com/pusher-js/-/pusher-js-4.2.2.tgz#de391bfb14d221ef96f462304f8a73b95ce9acc5"
+pusher-js@^4.3.0:
+  version "4.3.0"
+  resolved "https://registry.yarnpkg.com/pusher-js/-/pusher-js-4.3.0.tgz#b24319a5b0b784dc49498515274994488eff2f10"
   dependencies:
     faye-websocket "0.9.4"
+    tweetnacl "^1.0.0"
+    tweetnacl-util "^0.15.0"
     xmlhttprequest "^1.8.0"
 
 q@^1.1.2:
@@ -9663,10 +9665,18 @@ tunnel-agent@^0.6.0:
   dependencies:
     safe-buffer "^5.0.1"
 
+tweetnacl-util@^0.15.0:
+  version "0.15.0"
+  resolved "https://registry.yarnpkg.com/tweetnacl-util/-/tweetnacl-util-0.15.0.tgz#4576c1cee5e2d63d207fee52f1ba02819480bc75"
+
 tweetnacl@^0.14.3, tweetnacl@~0.14.0:
   version "0.14.5"
   resolved "https://registry.yarnpkg.com/tweetnacl/-/tweetnacl-0.14.5.tgz#5ae68177f192d4456269d108afa93ff8743f4f64"
 
+tweetnacl@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/tweetnacl/-/tweetnacl-1.0.0.tgz#713d8b818da42068740bf68386d0479e66fc8a7b"
+
 twilio-video@^1.10.0:
   version "1.10.0"
   resolved "https://registry.yarnpkg.com/twilio-video/-/twilio-video-1.10.0.tgz#5345f7b664a815a0fc35b99820cdfe19984ae56f"