diff --git a/CHANGELOG.md b/CHANGELOG.md
index c1affdb..bc08176 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,8 @@
+### 0.5.3 / 2015-02-22
+
+* Don't treat incoming data as WebSocket frames if a client driver is closed
+  before receiving the server handshake
+
 ### 0.5.2 / 2015-02-19
 
 * Don't emit multiple `error` events
diff --git a/websocket-driver.gemspec b/websocket-driver.gemspec
index ec0e84b..ba690de 100644
--- a/websocket-driver.gemspec
+++ b/websocket-driver.gemspec
@@ -1,6 +1,6 @@
 Gem::Specification.new do |s|
   s.name              = 'websocket-driver'
-  s.version           = '0.5.2'
+  s.version           = '0.5.3'
   s.summary           = 'WebSocket protocol handler with pluggable I/O'
   s.author            = 'James Coglan'
   s.email             = 'jcoglan@gmail.com'