diff --git a/docs/Gemfile.lock b/docs/Gemfile.lock
old mode 100755
new mode 100644
index d982e64..799881d
--- a/docs/Gemfile.lock
+++ b/docs/Gemfile.lock
@@ -7,9 +7,9 @@ GEM
       minitest (~> 5.1)
       tzinfo (~> 1.1)
       zeitwerk (~> 2.2)
-    addressable (2.7.0)
-      public_suffix (>= 2.0.2, < 5.0)
-    bibtex-ruby (5.1.0)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
+    bibtex-ruby (4.4.7)
       latex-decode (~> 0.0)
     citeproc (1.0.10)
       namae (~> 1.0)