diff --git a/droidux/src/test/groovy/info/izumin/android/droidux/DispatcherTest.groovy b/droidux/src/test/groovy/info/izumin/android/droidux/DispatcherTest.groovy
index ff78565..85513b0 100644
--- a/droidux/src/test/groovy/info/izumin/android/droidux/DispatcherTest.groovy
+++ b/droidux/src/test/groovy/info/izumin/android/droidux/DispatcherTest.groovy
@@ -1,7 +1,7 @@
 package info.izumin.android.droidux
 
-import io.reactivex.Single
-import spock.lang.Specification;
+import io.reactivex.Flowable
+import spock.lang.Specification
 
 /**
  * Created by izumin on 11/24/15.
@@ -34,10 +34,10 @@ class DispatcherTest extends Specification {
         dispatcher.dispatch(action).subscribe()
 
         then:
-        1 * middleware1.beforeDispatch(action) >> Single.just(action)
+        1 * middleware1.beforeDispatch(action) >> Flowable.just(action)
 
         then:
-        1 * middleware2.beforeDispatch(action) >> Single.just(action)
+        1 * middleware2.beforeDispatch(action) >> Flowable.just(action)
 
         then:
         1 * store1.dispatch(action)
@@ -46,9 +46,9 @@ class DispatcherTest extends Specification {
         1 * store2.dispatch(action)
 
         then:
-        1 * middleware2.afterDispatch(action) >> Single.just(action)
+        1 * middleware2.afterDispatch(action) >> Flowable.just(action)
 
         then:
-        1 * middleware1.afterDispatch(action) >> Single.just(action)
+        1 * middleware1.afterDispatch(action) >> Flowable.just(action)
     }
 }