updated dependencies

pom.xml

@@ -4,7 +4,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>3.1.5</version>
+		<version>3.2.4</version>
 		<relativePath /> <!-- lookup parent from repository -->
 	</parent>
 
@@ -16,8 +16,15 @@
 
 	<properties>
 		<java.version>17</java.version>
-		<kotlin.version>1.9.10</kotlin.version>
+		<kotlin.version>1.9.23</kotlin.version>
+		<deckfour.openxes.version>1.1</deckfour.openxes.version>
+		<deckfour.spex.version>1.0-RC2</deckfour.spex.version>
 		<maven-release-plugin.version>3.0.1</maven-release-plugin.version>
+		<guava.verion>32.1.3-jre</guava.verion>
+		<okhttp3.mockwebserver.version>4.12.0</okhttp3.mockwebserver.version>
+		<kotest.runner.junit5.version>5.8.1</kotest.runner.junit5.version>
+		<mockk.version>1.13.10</mockk.version>
+		<springmockk.version>4.0.2</springmockk.version>
 		<project.scm.url>https://github.com/envite-consulting/optimize-to-xes.git</project.scm.url>
 	</properties>
 
@@ -47,13 +54,13 @@
 		<dependency>
 			<groupId>org.deckfour</groupId>
 			<artifactId>openxes</artifactId>
-			<version>1.1</version>
+			<version>${deckfour.openxes.version}</version>
 		</dependency>
 
 		<dependency>
 			<groupId>org.deckfour</groupId>
 			<artifactId>spex</artifactId>
-			<version>1.0-RC2</version>
+			<version>${deckfour.spex.version}</version>
 		</dependency>
 
 
@@ -84,7 +91,7 @@
 		<dependency>
 			<groupId>com.google.guava</groupId>
 			<artifactId>guava</artifactId>
-			<version>32.1.3-jre</version>
+			<version>${guava.verion}</version>
 		</dependency>
 
 		<dependency>
@@ -106,28 +113,28 @@
 		<dependency>
 			<groupId>com.squareup.okhttp3</groupId>
 			<artifactId>mockwebserver</artifactId>
-			<version>4.11.0</version>
+			<version>${okhttp3.mockwebserver.version}</version>
 			<scope>test</scope>
 		</dependency>
 
 		<dependency>
 			<groupId>io.kotest</groupId>
 			<artifactId>kotest-runner-junit5-jvm</artifactId>
-			<version>5.7.2</version>
+			<version>${kotest.runner.junit5.version}</version>
 			<scope>test</scope>
 		</dependency>
 
 		<dependency>
 			<groupId>io.mockk</groupId>
 			<artifactId>mockk-jvm</artifactId>
-			<version>1.13.8</version>
+			<version>${mockk.version}</version>
 			<scope>test</scope>
 		</dependency>
 
 		<dependency>
 			<groupId>com.ninja-squad</groupId>
 			<artifactId>springmockk</artifactId>
-			<version>4.0.2</version>
+			<version>${springmockk.version}</version>
 			<scope>test</scope>
 		</dependency>