diff --git a/ChangeLog.md b/ChangeLog.md
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,5 +1,9 @@
 # Changelog for http-client-tls
 
+## 0.3.6.2
+
+* Migrate to `crypton`
+
 ## 0.3.6.1
 
 * [#482](https://github.com/snoyberg/http-client/issues/482):
diff --git a/Network/HTTP/Client/TLS.hs b/Network/HTTP/Client/TLS.hs
--- a/Network/HTTP/Client/TLS.hs
+++ b/Network/HTTP/Client/TLS.hs
@@ -99,10 +99,8 @@
               | Just (_ :: TLS.TLSException)     <- fromException se = se'
               | Just (_ :: TLS.TLSError)         <- fromException se = se'
               | Just (_ :: NC.LineTooLong)       <- fromException se = se'
-#if MIN_VERSION_connection(0,2,7)
               | Just (_ :: NC.HostNotResolved)   <- fromException se = se'
               | Just (_ :: NC.HostCannotConnect) <- fromException se = se'
-#endif
               | otherwise = se
               where
                 se' = toException $ HttpExceptionRequest req $ InternalException se
diff --git a/http-client-tls.cabal b/http-client-tls.cabal
--- a/http-client-tls.cabal
+++ b/http-client-tls.cabal
@@ -1,5 +1,5 @@
 name:                http-client-tls
-version:             0.3.6.1
+version:             0.3.6.2
 synopsis:            http-client backend using the connection package and tls library
 description:         Hackage documentation generation is not reliable. For up to date documentation, please see: <https://www.stackage.org/package/http-client-tls>.
 homepage:            https://github.com/snoyberg/http-client
@@ -19,14 +19,14 @@
   build-depends:       base >= 4.10 && < 5
                      , data-default-class
                      , http-client >= 0.7.11
-                     , connection >= 0.2.5
+                     , crypton-connection
                      , network
                      , tls >= 1.2
                      , bytestring
                      , case-insensitive
                      , transformers
                      , http-types
-                     , cryptonite
+                     , crypton
                      , memory
                      , exceptions
                      , containers
@@ -41,7 +41,6 @@
   hs-source-dirs:      test
   default-language:    Haskell2010
   build-depends:       base
-                     , connection
                      , hspec
                      , http-client
                      , http-client-tls