diff --git a/Gemfile.lock b/Gemfile.lock
index bdd13a8..a779bbe 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -40,7 +40,7 @@ GEM
     mercenary (0.3.6)
     pathutil (0.16.1)
       forwardable-extended (~> 2.6)
-    pdfkit (0.8.2)
+    pdfkit (0.8.7.2)
     public_suffix (3.0.3)
     rb-fsevent (0.10.3)
     rb-inotify (0.9.10)