diff --git a/zulip-client.gemspec b/zulip-client.gemspec
index 0b24d25..59fc42e 100644
--- a/zulip-client.gemspec
+++ b/zulip-client.gemspec
@@ -20,9 +20,9 @@ Gem::Specification.new do |spec|
   spec.executables   = spec.files.grep(%r{^bin/}) {|f| File.basename(f) }
   spec.require_paths = ["lib"]
 
-  spec.add_runtime_dependency "faraday", ">= 0.11.0"
+  spec.add_runtime_dependency "faraday", "~> 1.0"
   spec.add_runtime_dependency "typhoeus", "~> 1.1.0"
-  spec.add_development_dependency "bundler", "~> 1.14"
+  spec.add_development_dependency "bundler"
   spec.add_development_dependency "rake", "~> 12.0"
   spec.add_development_dependency "test-unit", ">= 3.2.0"
   spec.add_development_dependency "webmock"