diff --git a/Gemfile.lock b/Gemfile.lock
index faa409b..32c1e86 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -54,7 +54,7 @@ GEM
       io-event (~> 1.1)
       timers (~> 4.1)
     base64 (0.2.0)
-    bigdecimal (3.1.6)
+    bigdecimal (3.1.8)
     builder (3.2.4)
     coffee-script (2.4.1)
       coffee-script-source
@@ -166,7 +166,7 @@ GEM
       jekyll (>= 3.7, < 5.0)
     jekyll-titles-from-headings (0.5.3)
       jekyll (>= 3.3, < 5.0)
-    jekyll-toc (0.18.0)
+    jekyll-toc (0.19.0)
       jekyll (>= 3.9)
       nokogiri (~> 1.12)
     jekyll-watch (2.2.1)
@@ -191,7 +191,7 @@ GEM
       crass (~> 1.0.2)
       nokogiri (>= 1.12.0)
     mercenary (0.4.0)
-    mini_portile2 (2.8.6)
+    mini_portile2 (2.8.7)
     mini_racer (0.12.0)
       libv8-node (~> 21.7.2.0)
     minitest (5.22.2)