diff --git a/pom.xml b/pom.xml
index 725733d..9f1cd19 100644
--- a/pom.xml
+++ b/pom.xml
@@ -7,7 +7,7 @@
     <groupId>de.hs-heilbronn.mi</groupId>
     <artifactId>zlibsvm</artifactId>
     <packaging>pom</packaging>
-    <version>2.1.1-SNAPSHOT</version>
+    <version>2.1.1</version>
 
     <name>zlibsvm</name>
     <description>A Java binding for the famous LIBSVM library</description>
@@ -78,10 +78,8 @@
         <maven.compile.encoding>UTF-8</maven.compile.encoding>
         <maven.compiler.target>${java.target}</maven.compiler.target>
 
-        <zlibsvm.version>2.1.1-SNAPSHOT</zlibsvm.version>
+        <zlibsvm.version>2.1.1</zlibsvm.version>
         <libsvm.version>3.35</libsvm.version>
-        <!-- apache commons stuff -->
-        <commons.lang3.version>3.13.0</commons.lang3.version>
 
         <!-- additional dependencies -->
         <junit.version>4.13.2</junit.version>
@@ -114,19 +112,6 @@
         </dependencies>
     </dependencyManagement>
 
-    <distributionManagement>
-        <snapshotRepository>
-            <id>ossrh</id>
-            <name>Sonatype Nexus snapshot repository</name>
-            <url>https://oss.sonatype.org/content/repositories/snapshots</url>
-        </snapshotRepository>
-        <repository>
-            <id>ossrh</id>
-            <name>Sonatype Nexus release repository</name>
-            <url>https://oss.sonatype.org/service/local/staging/deploy/maven2/</url>
-        </repository>
-    </distributionManagement>
-
     <build>
         <pluginManagement>
             <plugins>
@@ -276,7 +261,7 @@
 
     <profiles>
         <profile>
-            <id>release-deployment</id>
+            <id>release</id>
             <build>
                 <plugins>
                     <plugin>
@@ -299,6 +284,15 @@
                         <groupId>org.apache.maven.plugins</groupId>
                         <artifactId>maven-gpg-plugin</artifactId>
                     </plugin>
+                    <plugin>
+                        <groupId>org.sonatype.central</groupId>
+                        <artifactId>central-publishing-maven-plugin</artifactId>
+                        <version>0.6.0</version>
+                        <extensions>true</extensions>
+                        <configuration>
+                            <publishingServerId>central</publishingServerId>
+                        </configuration>
+                    </plugin>
                 </plugins>
             </build>
         </profile>
diff --git a/zlibsvm-api/pom.xml b/zlibsvm-api/pom.xml
index ab3da1d..f485ea2 100644
--- a/zlibsvm-api/pom.xml
+++ b/zlibsvm-api/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>de.hs-heilbronn.mi</groupId>
         <artifactId>zlibsvm</artifactId>
-        <version>2.1.1-SNAPSHOT</version>
+        <version>2.1.1</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
@@ -30,7 +30,7 @@
 
     <profiles>
         <profile>
-            <id>release-deployment</id>
+            <id>release</id>
             <build>
                 <plugins>
                     <plugin>
diff --git a/zlibsvm-core/pom.xml b/zlibsvm-core/pom.xml
index 25c0aa5..9bfe734 100644
--- a/zlibsvm-core/pom.xml
+++ b/zlibsvm-core/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>de.hs-heilbronn.mi</groupId>
         <artifactId>zlibsvm</artifactId>
-        <version>2.1.1-SNAPSHOT</version>
+        <version>2.1.1</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
@@ -58,7 +58,7 @@
 
     <profiles>
         <profile>
-            <id>release-deployment</id>
+            <id>release</id>
             <build>
                 <plugins>
                     <plugin>