diff --git a/lib/cocoaseeds/core.rb b/lib/cocoaseeds/core.rb
index abc60d8..5d86ed1 100644
--- a/lib/cocoaseeds/core.rb
+++ b/lib/cocoaseeds/core.rb
@@ -24,6 +24,10 @@ def install
       self.configure_phase
       self.project.save
       self.build_lockfile
+      @seeds = {}
+      @locks = {}
+      @source_files = {}
+      @file_references = []
     end
 
     def prepare_requirements