diff --git a/CHANGELOG.md b/CHANGELOG.md
index 540e6f1c..ce852440 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,10 @@
+## [4.3.4](https://github.com/enisdenjo/graphql-ws/compare/v4.3.3...v4.3.4) (2021-04-11)
+
+
+### Bug Fixes
+
+* **client:** Subscriptions acquire locks ([eb6cb2a](https://github.com/enisdenjo/graphql-ws/commit/eb6cb2a0654489e1210a8db93f90bfc3ebfe94e4))
+
 ## [4.3.3](https://github.com/enisdenjo/graphql-ws/compare/v4.3.2...v4.3.3) (2021-04-11)
 
 
diff --git a/package.json b/package.json
index 253f1246..d8dd336b 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "graphql-ws",
-  "version": "4.3.3",
+  "version": "4.3.4",
   "description": "Coherent, zero-dependency, lazy, simple, GraphQL over WebSocket Protocol compliant server and client",
   "keywords": [
     "protocol",