diff --git a/README.md b/README.md
index 0490174..3343324 100644
--- a/README.md
+++ b/README.md
@@ -56,7 +56,7 @@ The examples of declaring that repository and the dependency on this package in
     <dependency>
       <groupId>io.github.sttk</groupId>
       <artifactId>sabi</artifactId>
-      <version>0.8.0</version>
+      <version>0.9.0</version>
     </dependency>
   </dependencies>
 ```
@@ -68,7 +68,7 @@ repositories {
   mavenCentral()
 }
 dependencies {
-  implementation 'io.github.sttk:sabi:0.8.0'
+  implementation 'io.github.sttk:sabi:0.9.0'
 }
 ```
 
@@ -254,9 +254,9 @@ This program is free software under MIT License.<br>
 See the file LICENSE in this distribution for more details.
 
 
-[mvn-img]: https://img.shields.io/badge/maven_central-0.8.0-276bdd.svg
-[mvn-url]: https://central.sonatype.com/artifact/io.github.sttk/sabi/0.8.0
-[mvnrepo-img]: https://img.shields.io/badge/mvn_repository-0.8.0-498df4.svg
+[mvn-img]: https://img.shields.io/badge/maven_central-0.9.0-276bdd.svg
+[mvn-url]: https://central.sonatype.com/artifact/io.github.sttk/sabi/0.9.0
+[mvnrepo-img]: https://img.shields.io/badge/mvn_repository-0.9.0-498df4.svg
 [mvnrepo-url]: https://mvnrepository.com/artifact/io.github.sttk/sabi
 [io-img]: https://img.shields.io/badge/github.io-Javadoc-4d7a97.svg
 [io-url]: https://sttk.github.io/sabi-java/
diff --git a/pom.xml b/pom.xml
index e22c55a..0e1d1c3 100644
--- a/pom.xml
+++ b/pom.xml
@@ -6,7 +6,7 @@
 
   <groupId>io.github.sttk</groupId>
   <artifactId>sabi</artifactId>
-  <version>1.0.0</version>
+  <version>0.9.0</version>
   <packaging>jar</packaging>
 
   <name>sabi</name>
diff --git a/src/main/java/com/github/sttk/sabi/package-info.java b/src/main/java/com/github/sttk/sabi/package-info.java
index 50616de..285dc82 100644
--- a/src/main/java/com/github/sttk/sabi/package-info.java
+++ b/src/main/java/com/github/sttk/sabi/package-info.java
@@ -6,6 +6,6 @@
 /**
  * Provides core interfaces and classes for the sabi framework.
  *
- * @version 0.8
+ * @version 0.9
  */
 package com.github.sttk.sabi;
diff --git a/src/main/java/module-info.java b/src/main/java/module-info.java
index 3eaf209..fb74bed 100644
--- a/src/main/java/module-info.java
+++ b/src/main/java/module-info.java
@@ -10,7 +10,7 @@
  * manage data source and connection lifecycles, and execute logic functions in transactional or
  * non-transactional scopes.
  *
- * @version 0.8
+ * @version 0.9
  */
 module com.github.sttk.sabi {
   exports com.github.sttk.sabi;