--- a/snowplow-tracker/snowplow-tracker.gemspec
+++ b/snowplow-tracker/snowplow-tracker.gemspec
@@ -25,7 +25,7 @@
     s.specification_version = 4
 
     if Gem::Version.new(Gem::VERSION) >= Gem::Version.new('1.2.0') then
-      s.add_runtime_dependency(%q<contracts>.freeze, ["<= 0.11", "~> 0.7"])
+      s.add_runtime_dependency(%q<contracts>.freeze, ["~> 0.7"])
       s.add_development_dependency(%q<rspec>.freeze, ["~> 2.14.1"])
       s.add_development_dependency(%q<webmock>.freeze, ["~> 1.17.4"])
     else