diff --git a/docs/Gemfile.lock b/docs/Gemfile.lock
index 41cbd8df901e82d8a8b1202a17a0a2e02e8e9c22..466e89d37d88ca931ac60af78b980b14fd33dc9f 100644
--- a/docs/Gemfile.lock
+++ b/docs/Gemfile.lock
@@ -80,7 +80,7 @@ GEM
       octokit (~> 4.0)
       public_suffix (~> 3.0)
       typhoeus (~> 1.3)
-    html-pipeline (2.12.3)
+    html-pipeline (2.13.0)
       activesupport (>= 2)
       nokogiri (>= 1.4)
     html-proofer (3.15.3)