diff --git a/Gemfile b/Gemfile
index 47378a4..b8b86f3 100644
--- a/Gemfile
+++ b/Gemfile
@@ -35,6 +35,6 @@ gem "http_parser.rb", "~> 0.6.0", :platforms => [:jruby]
 
 #gem "webrick", "~> 1.7"
 gem "webrick", "~> 1.8.1"
-gem "just-the-docs", "~> 0.8.2" # pinned version
+gem "just-the-docs", "~> 0.9.0" # pinned version
 gem 'jemoji', "~> 0.13.0"
 gem 'kramdown-parser-gfm', "~> 1.1.0"
\ No newline at end of file
diff --git a/Gemfile.lock b/Gemfile.lock
index 6a77346..0b3ae25 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -21,7 +21,7 @@ GEM
     coffee-script-source (1.12.2)
     colorator (1.1.0)
     commonmarker (0.23.10)
-    concurrent-ruby (1.3.3)
+    concurrent-ruby (1.3.4)
     connection_pool (2.4.1)
     dnsruby (1.72.2)
       simpleidn (~> 0.2.1)
@@ -207,7 +207,7 @@ GEM
       gemoji (>= 3, < 5)
       html-pipeline (~> 2.2)
       jekyll (>= 3.0, < 5.0)
-    just-the-docs (0.8.2)
+    just-the-docs (0.9.0)
       jekyll (>= 3.8.5)
       jekyll-include-cache
       jekyll-seo-tag (>= 2.0)
@@ -245,7 +245,7 @@ GEM
     rb-fsevent (0.11.2)
     rb-inotify (0.11.1)
       ffi (~> 1.0)
-    rexml (3.3.1)
+    rexml (3.3.5)
       strscan
     rouge (3.30.0)
     rubyzip (2.3.2)
@@ -282,7 +282,7 @@ DEPENDENCIES
   http_parser.rb (~> 0.6.0)
   jekyll-feed (~> 0.17.0)
   jemoji (~> 0.13.0)
-  just-the-docs (~> 0.8.2)
+  just-the-docs (~> 0.9.0)
   kramdown-parser-gfm (~> 1.1.0)
   minima (~> 2.5.1)
   tzinfo