diff --git a/docs/Gemfile.lock b/docs/Gemfile.lock
old mode 100755
new mode 100644
index d982e64..4be4efe
--- a/docs/Gemfile.lock
+++ b/docs/Gemfile.lock
@@ -9,7 +9,7 @@ GEM
       zeitwerk (~> 2.2)
     addressable (2.7.0)
       public_suffix (>= 2.0.2, < 5.0)
-    bibtex-ruby (5.1.0)
+    bibtex-ruby (4.4.7)
       latex-decode (~> 0.0)
     citeproc (1.0.10)
       namae (~> 1.0)
@@ -236,7 +236,7 @@ GEM
       html-pipeline (~> 2.2)
       jekyll (>= 3.0, < 5.0)
     kramdown (1.17.0)
-    latex-decode (0.3.1)
+    latex-decode (0.3.2)
     liquid (4.0.3)
     listen (3.2.1)
       rb-fsevent (~> 0.10, >= 0.10.3)
@@ -244,7 +244,7 @@ GEM
     lumberjack (1.2.4)
     mercenary (0.3.6)
     method_source (0.9.2)
-    mini_portile2 (2.4.0)
+    mini_portile2 (2.8.0)
     minima (2.5.1)
       jekyll (>= 3.5, < 5.0)
       jekyll-feed (~> 0.9)
@@ -254,13 +254,15 @@ GEM
     multipart-post (2.1.1)
     namae (1.0.1)
     nenv (0.3.0)
-    nokogiri (1.10.9)
-      mini_portile2 (~> 2.4.0)
-    nokogiri (1.10.9-java)
-    nokogiri (1.10.9-x64-mingw32)
-      mini_portile2 (~> 2.4.0)
-    nokogiri (1.10.9-x86-mingw32)
-      mini_portile2 (~> 2.4.0)
+    nokogiri (1.13.3)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
+    nokogiri (1.13.3-java)
+      racc (~> 1.4)
+    nokogiri (1.13.3-x64-mingw32)
+      racc (~> 1.4)
+    nokogiri (1.13.3-x86-mingw32)
+      racc (~> 1.4)
     notiffany (0.1.3)
       nenv (~> 0.1)
       shellany (~> 0.0)
@@ -277,6 +279,8 @@ GEM
       method_source (~> 0.9.0)
       spoon (~> 0.0)
     public_suffix (3.1.1)
+    racc (1.6.0)
+    racc (1.6.0-java)
     rb-fsevent (0.10.3)
     rb-inotify (0.10.1)
       ffi (~> 1.0)