Gemfile in rbpdf-1.19.5 vs Gemfile in rbpdf-1.19.6

@@ -5,7 +5,6 @@
 source 'https://rubygems.org'
 
 # Specify your gem's dependencies in rbpdf.gemspec
 gemspec
 
-gem "actionpack"
-
+gem "actionpack", "~> 5.2.0"