diff --git a/RELEASE_NOTES.md b/RELEASE_NOTES.md
index c62fd4c..0c4385b 100644
--- a/RELEASE_NOTES.md
+++ b/RELEASE_NOTES.md
@@ -1,3 +1,6 @@
+#### 0.0.5 - November 12 2014
+* Cleans `Paket.Unity3D` directories in Unity3D projects when updating dependencies
+
 #### 0.0.4 - November 8 2014  
 * Not a prerelease anymore
 
diff --git a/src/Paket.Unity3D/AssemblyInfo.fs b/src/Paket.Unity3D/AssemblyInfo.fs
index a31e337..6387397 100644
--- a/src/Paket.Unity3D/AssemblyInfo.fs
+++ b/src/Paket.Unity3D/AssemblyInfo.fs
@@ -4,9 +4,9 @@ open System.Reflection
 [<assembly: AssemblyTitleAttribute("Paket.Unity3D")>]
 [<assembly: AssemblyProductAttribute("Paket.Unity3D")>]
 [<assembly: AssemblyDescriptionAttribute("Piggy-backs ontop of Paket to add dependencies to Unity3D projects")>]
-[<assembly: AssemblyVersionAttribute("0.0.4")>]
-[<assembly: AssemblyFileVersionAttribute("0.0.4")>]
+[<assembly: AssemblyVersionAttribute("0.0.5")>]
+[<assembly: AssemblyFileVersionAttribute("0.0.5")>]
 do ()
 
 module internal AssemblyVersionInformation =
-    let [<Literal>] Version = "0.0.4"
+    let [<Literal>] Version = "0.0.5"
diff --git a/src/Paket.Unity3D/InstallProcess.fs b/src/Paket.Unity3D/InstallProcess.fs
index 8654f44..4e0d793 100644
--- a/src/Paket.Unity3D/InstallProcess.fs
+++ b/src/Paket.Unity3D/InstallProcess.fs
@@ -6,6 +6,12 @@ open Paket.Logging
 open System.IO
 open System.Collections.Generic
 
+let private cleanTargetDirectories (unityProject:Unity3DReferencesFile) =
+    Constants.PluginDirs
+    |> List.map (fun pd -> Path.Combine(unityProject.UnityAssetsDir, pd, Constants.Unity3DCopyFolderName))
+    |> List.append [Path.Combine(unityProject.UnityAssetsDir, Constants.Unity3DCopyFolderName)]
+    |> List.iter (fun dir -> Utils.CleanDir dir)
+
 let private findPackagesWithContent (usedPackages:Dictionary<_,_>) = 
     usedPackages
     |> Seq.map (fun kv -> kv.Key, DirectoryInfo(Path.Combine("packages", kv.Key, "content")))
@@ -70,6 +76,8 @@ let Install(sources,force, hard, lockFile:LockFile) =
     for unityProject in applicableProjects do    
         verbosefn "Installing to %s" unityProject.UnityAssetsDir
 
+        cleanTargetDirectories unityProject
+
         let usedPackages = lockFile.GetPackageHull(unityProject.ReferencesFile)
         
         usedPackages