diff --git a/pom.xml b/pom.xml
index fea3f60..9c02727 100644
--- a/pom.xml
+++ b/pom.xml
@@ -23,7 +23,7 @@
         <jsonassert.version>1.5.0</jsonassert.version>
         <slf4j.version>1.7.28</slf4j.version>
         <commons-jexl3.version>3.1</commons-jexl3.version>
-        <spel.version>5.1.9.RELEASE</spel.version>
+        <spel.version>5.2.21.RELEASE</spel.version>
     </properties>
 
     <dependencies>