diff --git a/conduit-extra.cabal b/conduit-extra.cabal
--- a/conduit-extra.cabal
+++ b/conduit-extra.cabal
@@ -1,5 +1,5 @@
 Name:                conduit-extra
-Version:             1.1.3
+Version:             1.1.3.1
 Synopsis:            Batteries included conduit: adapters for common libraries.
 Description:
     The conduit package itself maintains relative small dependencies. The purpose of this package is to collect commonly used utility functions wrapping other library dependencies, without depending on heavier-weight dependencies. The basic idea is that this package should only depend on haskell-platform packages and conduit.
diff --git a/test/Data/Conduit/ProcessSpec.hs b/test/Data/Conduit/ProcessSpec.hs
--- a/test/Data/Conduit/ProcessSpec.hs
+++ b/test/Data/Conduit/ProcessSpec.hs
@@ -54,8 +54,17 @@
 
         threadDelay 1500000
 
-        mec2 <- getStreamingProcessExitCode cph
-        mec2 `shouldBe` Just ExitSuccess
+        -- For slow systems where sleep may take longer than 1.5 seconds, do
+        -- this in a loop.
+        let loop 0 = error "Took too long for sleep to exit, your system is acting funny"
+            loop i = do
+                mec2 <- getStreamingProcessExitCode cph
+                case mec2 of
+                    Nothing -> do
+                        threadDelay 500000
+                        loop (pred i)
+                    Just _ -> mec2 `shouldBe` Just ExitSuccess
+        loop 5
 
         ec <- waitForStreamingProcess cph
         ec `shouldBe` ExitSuccess