diff --git a/Gemfile b/Gemfile
index 2ded8324..6f6f4e43 100644
--- a/Gemfile
+++ b/Gemfile
@@ -4,4 +4,4 @@ gem 'rake'
 gem 'rspec'
 gem 'fuubar'
 gem 'nokogiri'
-gem 'csl', '1.0.0.pre9'
+gem 'csl', '1.0.0.pre10'
diff --git a/Gemfile.lock b/Gemfile.lock
index 2a40422b..797f75b7 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,7 +1,7 @@
 GEM
   remote: http://rubygems.org/
   specs:
-    csl (1.0.0.pre9)
+    csl (1.0.0.pre10)
       namae (~> 0.3)
     diff-lcs (1.1.3)
     fuubar (1.0.0)
@@ -26,7 +26,7 @@ PLATFORMS
   ruby
 
 DEPENDENCIES
-  csl (= 1.0.0.pre9)
+  csl (= 1.0.0.pre10)
   fuubar
   nokogiri
   rake