diff --git a/gradle.properties b/gradle.properties
index cffffe91..b537839f 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -7,7 +7,7 @@ issues                      = https://github.com/jbake-org/jbake/issues
 vcs                         = https://github.com/jbake-org/jbake/
 
 # runtime dependencies
-asciidoctorjVersion         = 2.5.2
+asciidoctorjVersion         = 2.5.7
 asciidoctorjDiagramVersion  = 2.2.1
 args4jVersion               = 2.33
 commonsIoVersion            = 2.11.0