Merged r17875 from trunk to 4.0-stable (#30821).

git-svn-id: http://svn.redmine.org/redmine/branches/4.0-stable@17876 e93f8b46-1217-0410-a6f0-8f06a7374b81

1 files changed, 1 insertions, 1 deletions

diff --git a/Gemfile b/Gemfile
index 89e5f6230..52789e57c 100644
--- a/Gemfile
+++ b/Gemfile
@@ -34,7 +34,7 @@ end
 platforms :mri, :mingw, :x64_mingw do
   # Optional gem for exporting the gantt to a PNG file, not supported with jruby
   group :rmagick do
-    gem "rmagick", ">= 2.14.0"
+    gem "rmagick", "~> 2.16.0"
   end
 
   # Optional Markdown support, not for JRuby