diff --git a/Gemfile.lock b/Gemfile.lock
index 00ec07458a..8805d2a12b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -28,7 +28,7 @@ GEM
     execjs (2.7.0)
     faraday (1.0.1)
       multipart-post (>= 1.2, < 3)
-    ffi (1.13.1)
+    ffi (1.14.1)
     forwardable-extended (2.6.0)
     gemoji (3.0.1)
     github-pages (209)
@@ -189,7 +189,7 @@ GEM
       jekyll-seo-tag (~> 2.0)
     jekyll-titles-from-headings (0.5.3)
       jekyll (>= 3.3, < 5.0)
-    jekyll-toc (0.15.0)
+    jekyll-toc (0.16.1)
       jekyll (>= 3.8)
       nokogiri (~> 1.10)
     jekyll-watch (2.2.1)
@@ -203,7 +203,7 @@ GEM
     kramdown-parser-gfm (1.1.0)
       kramdown (~> 2.0)
     liquid (4.0.3)
-    listen (3.2.1)
+    listen (3.3.3)
       rb-fsevent (~> 0.10, >= 0.10.3)
       rb-inotify (~> 0.9, >= 0.9.10)
     mercenary (0.3.6)