diff --git a/html-pipeline.gemspec b/html-pipeline.gemspec
index 38837469..8b170499 100644
--- a/html-pipeline.gemspec
+++ b/html-pipeline.gemspec
@@ -20,8 +20,8 @@ Gem::Specification.new do |gem|
   gem.add_dependency "github-markdown", "~> 0.5"
   gem.add_dependency "sanitize",        "~> 2.0"
   gem.add_dependency "rinku",           "~> 1.7"
-  gem.add_dependency "escape_utils",    "~> 0.2"
+  gem.add_dependency "escape_utils",    "~> 0.3"
   gem.add_dependency "activesupport",   ">= 2"
 
-  gem.add_development_dependency "github-linguist", "~> 2.1"
+  gem.add_development_dependency "github-linguist", "~> 2.6.2"
 end