diff --git a/Makefile b/Makefile
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,6 @@
-.PHONY: all clean
+.PHONY: all clean open
 
+APPS=Counter
 OBJ=dist/build
 COMPILE=ghc --make -outputdir $(OBJ) -i$(OBJ) -L$(OBJ) -isrc -i../reactive-banana/src
 
@@ -11,4 +12,7 @@
 all: Counter
 
 clean:
-	rm -rf $(APPS) obj/*.o obj/*.hi *.app *.exe *.manifest
+	rm -rf $(APPS) $(OBJ)/*.o $(OBJ)/*.hi *.app *.exe *.manifest
+
+open: Counter
+	open Counter.app
diff --git a/reactive-banana-wx.cabal b/reactive-banana-wx.cabal
--- a/reactive-banana-wx.cabal
+++ b/reactive-banana-wx.cabal
@@ -1,5 +1,5 @@
 Name:                reactive-banana-wx
-Version:             0.2.0.1
+Version:             0.2.0.3
 Synopsis:            Examples for the reactive-banana library, using wxHaskell.
 Description:
     This library provides some examples for the @reactive-banana@ library,
@@ -22,7 +22,8 @@
 
 Library
     hs-source-dirs:  src
-    build-depends:   base >= 4.2 && < 4.4, reactive-banana==0.2.*,
+    build-depends:   base >= 4.2 && < 4.4,
+                     reactive-banana >= 0.2.0.3 && < 0.3,
                      wx==0.12.*, wxcore==0.12.*
     extensions:      ExistentialQuantification
     exposed-modules: Reactive.Banana.WX
@@ -30,7 +31,8 @@
 Executable Counter
     hs-source-dirs:  src
     main-is:         Counter.hs
-    build-depends:   base >= 4.2 && < 4.4, reactive-banana==0.2.*,
+    build-depends:   base >= 4.2 && < 4.4,
+                     reactive-banana >= 0.2.0.3 && < 0.3,
                      wx==0.12.*, wxcore==0.12.*
     extensions:      ExistentialQuantification