diff --git a/Gemfile b/Gemfile
index 4a274549f..8ebaf5713 100644
--- a/Gemfile
+++ b/Gemfile
@@ -23,7 +23,7 @@ gem "rails-html-sanitizer", ">= 1.0.3"
 
 # Windows does not include zoneinfo files, so bundle the tzinfo-data gem
 gem 'tzinfo-data', platforms: [:mingw, :x64_mingw, :mswin, :jruby]
-gem "rbpdf", "~> 1.19.1"
+gem "rbpdf", "1.19.0"
 
 # Optional gem for LDAP authentication
 group :ldap do