diff --git a/pom.xml b/pom.xml
index 432e114..16bd8c0 100644
--- a/pom.xml
+++ b/pom.xml
@@ -37,7 +37,7 @@
 
     <!-- io7m dependencies. -->
     <com.io7m.jxtrand.version>2.0.0</com.io7m.jxtrand.version>
-    <com.io7m.xstructural.version>1.8.0</com.io7m.xstructural.version>
+    <com.io7m.xstructural.version>1.8.1</com.io7m.xstructural.version>
 
     <!-- Third-party dependencies. -->
     <jqwik.version>1.8.4</jqwik.version>