diff --git a/Gemfile.lock b/Gemfile.lock
index 4fbeb90..8436fad 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -56,7 +56,7 @@ GEM
     html-pipeline (2.13.0)
       activesupport (>= 2)
       nokogiri (>= 1.4)
-    html-proofer (3.17.2)
+    html-proofer (3.17.4)
       addressable (~> 2.3)
       mercenary (~> 0.3)
       nokogumbo (~> 2.0)
@@ -157,7 +157,7 @@ GEM
     multipart-post (2.1.1)
     nokogiri (1.10.10)
       mini_portile2 (~> 2.4.0)
-    nokogumbo (2.0.3)
+    nokogumbo (2.0.4)
       nokogiri (~> 1.8, >= 1.8.4)
     octokit (4.18.0)
       faraday (>= 0.9)