diff --git a/CHANGELOG.md b/CHANGELOG.md
index eaed6a16..497babad 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,15 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased/Snapshot]
 
+## [0.9.0] - 2025-05-09
+
+### Changed
+- Updated to `scala3` [#251](https://github.com/ie3-institute/simonaAPI/issues/251)
+
+### Updates
+- Updated PSU to 3.1.0
+- Updated PSDM to 7.0.0
+
 ## [0.8.0] - 2025-04-17
 
 ### Added
@@ -65,7 +74,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Renamed messages to ease understanding [#62](https://github.com/ie3-institute/simonaAPI/issues/62)
 - Separating departures and arrivals in message protocol, properly handling exceptions [#77](https://github.com/ie3-institute/simonaAPI/issues/77)
 
-[Unreleased/Snapshot]: https://github.com/ie3-institute/simonaapi/compare/0.8.0...HEAD
+[Unreleased/Snapshot]: https://github.com/ie3-institute/simonaapi/compare/0.9.0...HEAD
+[0.9.0]: https://github.com/ie3-institute/powersystemdatamodel/compare/0.8.0...0.9.0
 [0.8.0]: https://github.com/ie3-institute/powersystemdatamodel/compare/0.7.0...0.8.0
 [0.7.0]: https://github.com/ie3-institute/powersystemdatamodel/compare/0.6.0...0.7.0
 [0.6.0]: https://github.com/ie3-institute/powersystemdatamodel/compare/0.5.0...0.6.0
diff --git a/build.gradle b/build.gradle
index 77f4e9aa..0a053a9d 100644
--- a/build.gradle
+++ b/build.gradle
@@ -3,7 +3,7 @@ plugins {
   id 'java' // java support
   id 'com.diffplug.spotless' version '7.0.3'//code format
   id 'pmd' // code check, working on source code
-  id 'com.github.spotbugs' version '6.1.7' // code check, working on byte code
+  id 'com.github.spotbugs' version '6.1.11' // code check, working on byte code
   id "org.sonarqube" version "6.1.0.5360" // sonarqube
   id 'signing'
   id 'maven-publish' // publish to a maven repo (local or mvn central, has to be defined)
@@ -17,8 +17,8 @@ ext {
   scriptsLocation = 'gradle' + File.separator + 'scripts' + File.separator // location of script plugins
 
   // required for pekko
-  scalaVersion = "2.13"
-  scalaBinaryVersion = "2.13.16"
+  scalaVersion = '3'
+  scalaBinaryVersion = '3.7.0'
   pekkoVersion = "1.1.3"
 }
 
@@ -48,13 +48,13 @@ repositories {
 
 dependencies{
 
-  implementation 'tech.units:indriya:2.2.2' // quantities
+  implementation 'tech.units:indriya:2.2.3' // quantities
 
   // scala (needed for pekko)
-  implementation "org.scala-lang:scala-library:${scalaBinaryVersion}"
+  implementation "org.scala-lang:scala3-library_${scalaVersion}:${scalaBinaryVersion}"
 
   //PSU
-  implementation('com.github.ie3-institute:PowerSystemUtils:2.2.1') {
+  implementation('com.github.ie3-institute:PowerSystemUtils:3.1.0') {
     exclude group: 'org.apache.logging.log4j'
     exclude group: 'org.slf4j'
     /* Exclude our own nested dependencies */
@@ -62,7 +62,7 @@ dependencies{
   }
 
   //PSDM
-  implementation('com.github.ie3-institute:PowerSystemDataModel:6.0.0') {
+  implementation('com.github.ie3-institute:PowerSystemDataModel:7.0.0') {
     exclude group: 'org.apache.logging.log4j'
     exclude group: 'org.slf4j'
     /* Exclude our own nested dependencies */
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
index a4b76b95..9bbc975c 100644
Binary files a/gradle/wrapper/gradle-wrapper.jar and b/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 37f853b1..ca025c83 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.13-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.14-bin.zip
 networkTimeout=10000
 validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME
diff --git a/gradlew b/gradlew
index f5feea6d..faf93008 100755
--- a/gradlew
+++ b/gradlew
@@ -86,8 +86,7 @@ done
 # shellcheck disable=SC2034
 APP_BASE_NAME=${0##*/}
 # Discard cd standard output in case $CDPATH is set (https://github.com/gradle/gradle/issues/25036)
-APP_HOME=$( cd -P "${APP_HOME:-./}" > /dev/null && printf '%s
-' "$PWD" ) || exit
+APP_HOME=$( cd -P "${APP_HOME:-./}" > /dev/null && printf '%s\n' "$PWD" ) || exit
 
 # Use the maximum available, or set MAX_FD != -1 to use that value.
 MAX_FD=maximum
@@ -206,7 +205,7 @@ fi
 DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
 
 # Collect all arguments for the java command:
-#   * DEFAULT_JVM_OPTS, JAVA_OPTS, JAVA_OPTS, and optsEnvironmentVar are not allowed to contain shell fragments,
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and optsEnvironmentVar are not allowed to contain shell fragments,
 #     and any embedded shellness will be escaped.
 #   * For example: A user cannot expect ${Hostname} to be expanded, as it is an environment variable and will be
 #     treated as '${Hostname}' itself on the command line.
diff --git a/version.properties b/version.properties
index c3b49187..0faae71e 100644
--- a/version.properties
+++ b/version.properties
@@ -1,8 +1,8 @@
 #Generated by the Semver Plugin for Gradle
-#Tue Mar 11 17:00:20 CET 2025
+#Fri May 09 09:31:50 CEST 2025
 version.buildmeta=
 version.major=0
-version.minor=8
+version.minor=9
 version.patch=0
 version.prerelease=
-version.semver=0.8.0
+version.semver=0.9.0