diff --git a/Gemfile.lock b/Gemfile.lock
index 28b19c5..5becf74 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -85,7 +85,7 @@ GEM
       uri (>= 0.13.1)
     addressable (2.8.7)
       public_suffix (>= 2.0.2, < 7.0)
-    asciidoctor (2.0.25)
+    asciidoctor (2.0.26)
     ast (2.4.3)
     base64 (0.3.0)
     benchmark-ips (2.14.0)