diff --git a/gradle.properties b/gradle.properties
index 58dabbd..95a2971 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -2,4 +2,4 @@ group=org.seasar.doma
 version=1.0
 quarkusVersion=3.23.2
 quarkusDomaVersion=1.0.3
-domaVersion=3.8.0
+domaVersion=3.9.0
diff --git a/pom.xml b/pom.xml
index 81162bb..52b4a11 100644
--- a/pom.xml
+++ b/pom.xml
@@ -13,7 +13,7 @@
         <quarkus.platform.group-id>io.quarkus</quarkus.platform.group-id>
         <quarkus.platform.version>3.23.2</quarkus.platform.version>
         <quarkus-doma.version>1.0.3</quarkus-doma.version>
-        <doma.version>3.8.0</doma.version>
+        <doma.version>3.9.0</doma.version>
         <surefire-plugin.version>3.5.3</surefire-plugin.version>
         <compiler-plugin.version>3.14.0</compiler-plugin.version>
         <docker-plugin.version>0.28.0</docker-plugin.version>