diff --git a/plugin-descriptor.properties b/plugin-descriptor.properties
index 8fdbee1..c814b3c 100644
--- a/plugin-descriptor.properties
+++ b/plugin-descriptor.properties
@@ -1,6 +1,6 @@
 description=Lemmatizer token filter
-version=${elasticsearch.version}
+version=${project.version}
 name=elasticsearch-analysis-lemmagen
 classname=org.elasticsearch.plugin.analysis.lemmagen.AnalysisLemmagenPlugin
 java.version=1.8
-elasticsearch.version=${plugin.version}
+elasticsearch.version=${elasticsearch.version}
diff --git a/pom.xml b/pom.xml
index 02bd3b9..7f311b3 100644
--- a/pom.xml
+++ b/pom.xml
@@ -10,8 +10,6 @@
   <version>8.6.1</version>
   <packaging>jar</packaging>
   <properties>
-    <plugin.version>8.6.1</plugin.version>
-    <lucene.version>9.4.2</lucene.version>
     <elasticsearch.version>8.6.1</elasticsearch.version>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
   </properties>
@@ -27,73 +25,17 @@
       <artifactId>jlemmagen</artifactId>
       <version>1.0</version>
     </dependency>
-    <dependency>
-      <groupId>org.slf4j</groupId>
-      <artifactId>slf4j-api</artifactId>
-      <version>1.6.2</version>
-    </dependency>
     <dependency>
       <groupId>org.slf4j</groupId>
       <artifactId>slf4j-simple</artifactId>
-      <version>1.6.2</version>
-    </dependency>
-    <dependency>
-      <groupId>org.apache.lucene</groupId>
-      <artifactId>lucene-test-framework</artifactId>
-      <version>${lucene.version}</version>
-      <scope>test</scope>
-    </dependency>
-    <dependency>
-      <groupId>org.hamcrest</groupId>
-      <artifactId>hamcrest-core</artifactId>
-      <version>2.1</version>
-      <scope>test</scope>
-    </dependency>
-    <dependency>
-      <groupId>org.hamcrest</groupId>
-      <artifactId>hamcrest-library</artifactId>
-      <version>2.1</version>
-      <scope>test</scope>
+      <!-- explicitly matching eu.hlavki.text-jlemmagen org.slf4j-slf4j-api dependency version -->
+      <version>1.7.30</version>
     </dependency>
     <dependency>
       <groupId>org.elasticsearch.test</groupId>
       <artifactId>framework</artifactId>
       <version>${elasticsearch.version}</version>
       <scope>test</scope>
-      <exclusions>
-        <exclusion>
-          <groupId>org.hamcrest</groupId>
-          <artifactId>hamcrest-all</artifactId>
-        </exclusion>
-        <exclusion>
-          <groupId>junit</groupId>
-          <artifactId>junit</artifactId>
-        </exclusion>
-      </exclusions>
-    </dependency>
-    <dependency>
-      <groupId>junit</groupId>
-      <artifactId>junit</artifactId>
-      <version>4.13.1</version>
-      <scope>test</scope>
-      <exclusions>
-        <exclusion>
-          <groupId>org.hamcrest</groupId>
-          <artifactId>hamcrest-core</artifactId>
-        </exclusion>
-      </exclusions>
-    </dependency>
-    <dependency>
-      <groupId>org.apache.logging.log4j</groupId>
-      <artifactId>log4j-core</artifactId>
-      <version>[2.16.0,)</version>
-      <scope>test</scope>
-    </dependency>
-    <dependency>
-      <groupId>org.apache.logging.log4j</groupId>
-      <artifactId>log4j-api</artifactId>
-      <version>[2.16.0,)</version>
-      <scope>test</scope>
     </dependency>
   </dependencies>
   <build>
@@ -133,7 +75,7 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-surefire-plugin</artifactId>
-        <version>2.14</version>
+        <version>3.2.2</version>
         <configuration>
           <!-- disable security manager for tests -->
           <argLine>-Dtests.security.manager=false</argLine>