diff --git a/ChangeLog.md b/ChangeLog.md
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,5 +1,10 @@
 # ChangeLog for warp
 
+## 3.3.25
+
+* Catching up the signature change of openFd in the unix package v2.8.
+  [#926](https://github.com/yesodweb/wai/pull/926)
+
 ## 3.3.24
 
 * Switching the version of the "recv" package from 0.0.x to 0.1.x.
diff --git a/Network/Wai/Handler/Warp/FdCache.hs b/Network/Wai/Handler/Warp/FdCache.hs
--- a/Network/Wai/Handler/Warp/FdCache.hs
+++ b/Network/Wai/Handler/Warp/FdCache.hs
@@ -67,7 +67,11 @@
 
 openFile :: FilePath -> IO Fd
 openFile path = do
+#if MIN_VERSION_unix(2,8,0)
+    fd <- openFd path ReadOnly defaultFileFlags{nonBlock=False}
+#else
     fd <- openFd path ReadOnly Nothing defaultFileFlags{nonBlock=False}
+#endif
     setFileCloseOnExec fd
     return fd
 
diff --git a/warp.cabal b/warp.cabal
--- a/warp.cabal
+++ b/warp.cabal
@@ -1,5 +1,5 @@
 Name:                warp
-Version:             3.3.24
+Version:             3.3.25
 Synopsis:            A fast, light-weight web server for WAI applications.
 License:             MIT
 License-file:        LICENSE