diff --git a/Gemfile.lock b/Gemfile.lock
index bd57d74..25a8341 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -63,7 +63,7 @@ GEM
       racc (~> 1.4)
     pathutil (0.16.2)
       forwardable-extended (~> 2.6)
-    pdfkit (0.8.5)
+    pdfkit (0.8.7)
     public_suffix (4.0.6)
     racc (1.6.0)
     rb-fsevent (0.11.0)