diff --git a/Gemfile.lock b/Gemfile.lock
old mode 100755
new mode 100644
index bdc9eac..0531cf4
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -59,7 +59,7 @@ GEM
       jekyll (>= 3.3, < 5.0)
     jekyll-watch (2.2.1)
       listen (~> 3.0)
-    json (2.2.0)
+    json (2.3.1)
     kramdown (1.17.0)
     liquid (4.0.3)
     listen (3.1.5)