diff --git a/Gemfile.lock b/Gemfile.lock
index c59e016277..bad3cbe64a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -911,7 +911,7 @@ GEM
       chronic (>= 0.6.3)
     wicked_pdf (2.8.1)
       activesupport
-    wkhtmltopdf-binary (0.12.6.7)
+    wkhtmltopdf-binary (0.12.6.9)
     xml-simple (1.1.8)
     xpath (3.2.0)
       nokogiri (~> 1.8)