diff --git a/iruby.gemspec b/iruby.gemspec
index 898e34b..543327b 100644
--- a/iruby.gemspec
+++ b/iruby.gemspec
@@ -19,7 +19,7 @@ Gem::Specification.new do |s|
 
   s.required_ruby_version = '>= 2.3.0'
 
-  s.add_dependency 'data_uri', '~> 0.1'
+  s.add_dependency 'data_uri'
   s.add_dependency 'ffi-rzmq'
   s.add_dependency 'irb'
   s.add_dependency 'logger'
diff --git a/lib/iruby/kernel.rb b/lib/iruby/kernel.rb
index c1c1a91..4db630f 100644
--- a/lib/iruby/kernel.rb
+++ b/lib/iruby/kernel.rb
@@ -190,6 +190,7 @@ def execute_request(msg)
       unless silent
         exec_info = ExecutionInfo.new(code, store_history, silent)
         events.trigger(:pre_run_cell, exec_info)
+        code = exec_info.raw_cell
       end
 
       content = {