diff --git a/pom.xml b/pom.xml
index 8a90056a..42edf50c 100644
--- a/pom.xml
+++ b/pom.xml
@@ -362,7 +362,7 @@
 				<plugin>
 					<groupId>org.asciidoctor</groupId>
 					<artifactId>asciidoctor-maven-plugin</artifactId>
-					<version>1.5.6</version>
+					<version>1.5.7.1</version>
 				</plugin>
 
 				<plugin>
@@ -760,12 +760,12 @@
 								<dependency>
 									<groupId>org.asciidoctor</groupId>
 									<artifactId>asciidoctorj-pdf</artifactId>
-									<version>1.5.0-alpha.11</version>
+									<version>1.5.0-alpha.16</version>
 								</dependency>
 								<dependency>
 									<groupId>org.asciidoctor</groupId>
 									<artifactId>asciidoctorj-epub3</artifactId>
-									<version>1.5.0-alpha.6</version>
+									<version>1.5.0-alpha.8.1</version>
 								</dependency>
 							</dependencies>
 							<executions>