diff --git a/pom.xml b/pom.xml
index 3cced5b..2c10343 100644
--- a/pom.xml
+++ b/pom.xml
@@ -30,7 +30,7 @@
     <maven.compiler.target>${takari.javaSourceVersion}</maven.compiler.target>
 
     <!-- These two should be changed in lockstep: whatever in current maven version is -->
-    <mavenVersion>3.6.3</mavenVersion>
+    <mavenVersion>3.9.9</mavenVersion>
     <sisuVersion>0.3.4</sisuVersion>
   </properties>