diff --git a/mcp.cabal b/mcp.cabal
--- a/mcp.cabal
+++ b/mcp.cabal
@@ -20,7 +20,7 @@
 -- PVP summary:     +-+------- breaking API changes
 --                  | | +----- non-breaking API additions
 --                  | | | +--- code changes with no API change
-version:            0.2.0.0
+version:            0.2.0.1
 
 -- A short (one-line) description of the package.
 synopsis:           A Haskell implementation of the Model Context Protocol (MCP)
@@ -41,6 +41,7 @@
     .
     Both transports use the same MCPServer typeclass, allowing seamless switching between
     communication methods while maintaining identical server logic.
+    Supports version 2025-03-26 of the MCP protocol.
 
 -- The license under which the package is released.
 license:            MIT
diff --git a/src/MCP/Server/HTTP.hs b/src/MCP/Server/HTTP.hs
--- a/src/MCP/Server/HTTP.hs
+++ b/src/MCP/Server/HTTP.hs
@@ -28,7 +28,7 @@
     defaultDemoOAuthConfig,
 ) where
 
-import Control.Concurrent.STM (TVar, atomically, modifyTVar', newTVarIO, readTVarIO, writeTVar)
+import Control.Concurrent.STM (TVar, atomically, modifyTVar', newTVarIO, readTVar, readTVarIO, writeTVar)
 import Control.Monad.IO.Class (liftIO)
 import Control.Monad.Reader (ask)
 import Control.Monad.State.Strict (get, put)