diff --git a/Gemfile.lock b/Gemfile.lock
index ec8e5bd220..b01d106dff 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -13,7 +13,7 @@ GEM
     eventmachine (1.2.7)
     ffi (1.12.2)
     forwardable-extended (2.6.0)
-    html-proofer (3.15.2)
+    html-proofer (3.15.3)
       addressable (~> 2.3)
       mercenary (~> 0.3)
       nokogumbo (~> 2.0)
@@ -60,7 +60,7 @@ GEM
     parallel (1.19.1)
     pathutil (0.16.2)
       forwardable-extended (~> 2.6)
-    public_suffix (4.0.3)
+    public_suffix (4.0.4)
     rainbow (3.0.0)
     rb-fsevent (0.10.3)
     rb-inotify (0.10.0)