diff --git a/spec/extend_by_spec.rb b/spec/extend_by_spec.rb
index <HASH>..<HASH> 100644
--- a/spec/extend_by_spec.rb
+++ b/spec/extend_by_spec.rb
@@ -2,7 +2,7 @@ require 'spec_helper'
 
 describe Mongo::Lock do
 
-  let(:lock) { Mongo::Lock.new 'my_lock', owner: 'spence', timeout_in: 0.01, frequency: 0.01, expire_in: 0.1 }
+  let(:lock) { Mongo::Lock.new 'my_lock', owner: 'spence', timeout_in: 0.01, frequency: 0.01, expire_in: 1 }
 
   describe '#extend_by' do
 
@@ -23,6 +23,8 @@ describe Mongo::Lock do
 
     context "when the lock has expired" do
 
+      let(:lock) { Mongo::Lock.new 'my_lock', owner: 'spence', timeout_in: 0.01, frequency: 0.01, expire_in: 0.11 }
+
       it "returns false" do
         lock.acquire
         sleep 0.11
Made some test times more leaniant