diff --git a/Rakefile b/Rakefile
index 454f9e49..8085d3a3 100644
--- a/Rakefile
+++ b/Rakefile
@@ -10,8 +10,9 @@ begin
     gem.email = "technoweenie@gmail.com"
     gem.homepage = "http://github.com/technoweenie/faraday"
     gem.authors = ["rick"]
-    gem.add_dependency "rack",        ">= 1.0.1"
-    gem.add_dependency "addressable", ">= 2.1.1"
+    gem.add_dependency "rack",           "~> 1.0.1"
+    gem.add_dependency "multipart-post", "~> 1.0.1"
+    gem.add_dependency "addressable",    "~> 2.1.1"
   end
   Jeweler::GemcutterTasks.new