diff --git a/pom.xml b/pom.xml
index 376a8a5..34a08b0 100644
--- a/pom.xml
+++ b/pom.xml
@@ -31,7 +31,7 @@
 
   <properties>
     <clojure.warnOnReflection>true</clojure.warnOnReflection>
-    <clojure.version>1.7.0</clojure.version>
+    <clojure.version>1.9.0</clojure.version>
   </properties>
 
   <developers>