diff --git a/Gemfile.lock b/Gemfile.lock
old mode 100755
new mode 100644
index b8aa71f..a1988bf
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -75,7 +75,7 @@ GEM
       jekyll (>= 3.0, < 5.0)
     katex (0.6.0)
       execjs (~> 2.7)
-    kramdown (2.3.0)
+    kramdown (2.3.1)
       rexml
     kramdown-math-katex (1.0.1)
       katex (~> 0.4)