diff --git a/okhttp-tests/src/test/java/com/squareup/okhttp/internal/http/HttpOverSpdyTest.java b/okhttp-tests/src/test/java/com/squareup/okhttp/internal/http/HttpOverSpdyTest.java
index ab8f3c97ccea..be9fca2cc89e 100644
--- a/okhttp-tests/src/test/java/com/squareup/okhttp/internal/http/HttpOverSpdyTest.java
+++ b/okhttp-tests/src/test/java/com/squareup/okhttp/internal/http/HttpOverSpdyTest.java
@@ -32,6 +32,7 @@
 import java.net.Authenticator;
 import java.net.CookieManager;
 import java.net.HttpURLConnection;
+import java.net.SocketTimeoutException;
 import java.net.URL;
 import java.util.Arrays;
 import java.util.Collections;
@@ -307,8 +308,8 @@ protected HttpOverSpdyTest(Protocol protocol){
     try {
       readAscii(connection.getInputStream(), Integer.MAX_VALUE);
       fail("Should have timed out!");
-    } catch (IOException e){
-      assertEquals("timeout", e.getMessage());
+    } catch (SocketTimeoutException expected) {
+      assertEquals("timeout", expected.getMessage());
     }
   }
 
diff --git a/okhttp-tests/src/test/java/com/squareup/okhttp/internal/http/URLConnectionTest.java b/okhttp-tests/src/test/java/com/squareup/okhttp/internal/http/URLConnectionTest.java
index bf22e1501003..bb9a261e63ab 100644
--- a/okhttp-tests/src/test/java/com/squareup/okhttp/internal/http/URLConnectionTest.java
+++ b/okhttp-tests/src/test/java/com/squareup/okhttp/internal/http/URLConnectionTest.java
@@ -57,6 +57,7 @@
 import java.net.ServerSocket;
 import java.net.Socket;
 import java.net.SocketAddress;
+import java.net.SocketTimeoutException;
 import java.net.URI;
 import java.net.URL;
 import java.net.URLConnection;
@@ -2202,7 +2203,7 @@ private void testRedirect(boolean temporary, String method) throws Exception {
     try {
       in.read(); // if Content-Length was accurate, this would return -1 immediately
       fail();
-    } catch (IOException expected) {
+    } catch (SocketTimeoutException expected) {
     }
   }
 
@@ -2238,7 +2239,7 @@ protected void configureSocket(Socket socket) throws IOException {
       byte[] data = new byte[16 * 1024 * 1024]; // 16 MiB.
       out.write(data);
       fail();
-    } catch (IOException expected) {
+    } catch (SocketTimeoutException expected) {
     }
   }
 
diff --git a/okhttp/src/main/java/com/squareup/okhttp/internal/spdy/SpdyStream.java b/okhttp/src/main/java/com/squareup/okhttp/internal/spdy/SpdyStream.java
index 05ce57a96400..1c1f76fddfe1 100644
--- a/okhttp/src/main/java/com/squareup/okhttp/internal/spdy/SpdyStream.java
+++ b/okhttp/src/main/java/com/squareup/okhttp/internal/spdy/SpdyStream.java
@@ -19,6 +19,7 @@
 import java.io.EOFException;
 import java.io.IOException;
 import java.io.InterruptedIOException;
+import java.net.SocketTimeoutException;
 import java.util.ArrayList;
 import java.util.List;
 import okio.AsyncTimeout;
@@ -596,12 +597,21 @@ private void waitForIo() throws InterruptedIOException {
    * notify the waiting thread.
    */
   class SpdyTimeout extends AsyncTimeout {
+
     @Override protected void timedOut() {
       closeLater(ErrorCode.CANCEL);
     }
 
-    public void exitAndThrowIfTimedOut() throws InterruptedIOException {
-      if (exit()) throw new InterruptedIOException("timeout");
+    @Override protected IOException newTimeoutException(IOException cause) {
+      SocketTimeoutException socketTimeoutException = new SocketTimeoutException("timeout");
+      if (cause != null) {
+        socketTimeoutException.initCause(cause);
+      }
+      return socketTimeoutException;
+    }
+
+    public void exitAndThrowIfTimedOut() throws IOException {
+      if (exit()) throw newTimeoutException(null /* cause */);
     }
   }
 }
diff --git a/pom.xml b/pom.xml
index 1e84f8807e57..c4629bb404a6 100644
--- a/pom.xml
+++ b/pom.xml
@@ -42,7 +42,7 @@
 
     <!-- Compilation -->
     <java.version>1.7</java.version>
-    <okio.version>1.4.0</okio.version>
+    <okio.version>1.5.0-SNAPSHOT</okio.version>
     <!-- ALPN library targeted to Java 7 -->
     <alpn.jdk7.version>7.1.2.v20141202</alpn.jdk7.version>
     <!-- ALPN library targeted to Java 8 update 25. -->