diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,11 @@
 # Change log for "tls"
 
-## Version 2.2
+## Version 2.2.1
+
+* Disabling compressed certificate on the client side.
+  [#514](https://github.com/haskell-tls/hs-tls/issues/514)
+
+## Version 2.2.0
 
 * Using crypton-asn1-* and time-hourglass.
   [#512](https://github.com/haskell-tls/hs-tls/pull/512)
diff --git a/Network/TLS/Handshake/Client/ClientHello.hs b/Network/TLS/Handshake/Client/ClientHello.hs
--- a/Network/TLS/Handshake/Client/ClientHello.hs
+++ b/Network/TLS/Handshake/Client/ClientHello.hs
@@ -181,8 +181,8 @@
             , {- 0x0d -} signatureAlgExt
             , {- 0x10 -} alpnExt
             , {- 0x17 -} emsExt
-            , {- 0x1b -} compCertExt
-            , {- 0x1c -} recordSizeLimitExt
+            , --          , {- 0x1b -} compCertExt
+              {- 0x1c -} recordSizeLimitExt
             , {- 0x23 -} sessionTicketExt
             , {- 0x2a -} earlyDataExt
             , {- 0x2b -} versionExt
@@ -238,7 +238,7 @@
                 then Nothing
                 else Just $ toExtensionRaw ExtendedMainSecret
 
-    compCertExt = return $ Just $ toExtensionRaw (CompressCertificate [CCA_Zlib])
+    --    compCertExt = return $ Just $ toExtensionRaw (CompressCertificate [CCA_Zlib])
 
     recordSizeLimitExt = case limitRecordSize $ sharedLimit $ ctxShared ctx of
         Nothing -> return Nothing
diff --git a/tls.cabal b/tls.cabal
--- a/tls.cabal
+++ b/tls.cabal
@@ -1,6 +1,6 @@
 cabal-version:      >=1.10
 name:               tls
-version:            2.2.0
+version:            2.2.1
 license:            BSD3
 license-file:       LICENSE
 copyright:          Vincent Hanquez <vincent@snarc.org>