diff --git a/build/pom.xml b/build/pom.xml
index 1ceaf2b7e2..c97e11d5f9 100644
--- a/build/pom.xml
+++ b/build/pom.xml
@@ -34,7 +34,7 @@
         <dependency>
             <groupId>net.sf.saxon</groupId>
             <artifactId>Saxon-HE</artifactId>
-            <version>11.5</version>
+            <version>12.0</version>
         </dependency>
         <dependency>
             <groupId>com.xmlcalabash</groupId>