diff --git a/.github/workflows/release-and-deploy.yml b/.github/workflows/release-and-deploy.yml
index cf5636d8..7b76f24a 100644
--- a/.github/workflows/release-and-deploy.yml
+++ b/.github/workflows/release-and-deploy.yml
@@ -5,7 +5,7 @@
 name: Release and deploy to Sonatype staging repo
 env:
   GITHUB_PAT: ${{ secrets.QUDTLIB_BOT_GITHUB_TOKEN }}
-  MAVEN_USERNAME: ${{ secrets.MAVEN_USERNAME }}
+  MAVEN_USERNAME: ${{ secrets.MAVEN_CENTRAL_USERNAME }}
   MAVEN_CENTRAL_TOKEN: ${{ secrets.MAVEN_CENTRAL_TOKEN }}
   MAVEN_GPG_PASSPHRASE: ${{ secrets.MAVEN_GPG_PASSPHRASE }}
 on:
@@ -19,10 +19,6 @@ on:
         description: 'Next SNAPSHOT version (such as 2.4-SNAPSHOT)'
         required: true
         type: string
-      environment:
-        description: 'Environment to run tests against'
-        type: environment
-        required: true
     secrets:
       QUDTLIB_BOT_GITHUB_TOKEN:
         required: true
@@ -35,8 +31,6 @@ on:
 
 jobs:
   build:
-    # setting the environment on the job is mandatory, otherwise it cannot access environment secrets.
-    environment: ${{ inputs.environment }}
     runs-on: ubuntu-latest
 
     steps:
diff --git a/CHANGELOG.md b/CHANGELOG.md
index fd3b2d9d..b5e5d2c2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Changed
 
+- when using `qudtlib` as a dependency, you have to add `<type>pom</type>` (see updatede [`README.md`](README.md)). This is due to more rigorous
+  artifact checks by sonatype that prevent jar artifacts without sources.
 - Upgrade to QUDT 3.1.4
   - Calculation of scalings and factor units now happens in QUDT (see PR [1129](https://github.com/qudt/qudt-public-repo/pull/1129))
     However, a few things have changed:
diff --git a/README.md b/README.md
index a36cde7f..0e47f29c 100644
--- a/README.md
+++ b/README.md
@@ -31,6 +31,7 @@ Maven dependency:
 	<groupId>io.github.qudtlib</groupId>
 	<artifactId>qudtlib</artifactId>
 	<version>${project.version}</version> <!-- remember to use the latest version -->
+	<type>pom</type>
 </dependency>
 ```
 
diff --git a/pom.xml b/pom.xml
index dfe94d3d..7130111b 100644
--- a/pom.xml
+++ b/pom.xml
@@ -124,6 +124,15 @@
                     <groupId>org.apache.maven.plugins</groupId>
                     <artifactId>maven-deploy-plugin</artifactId>
                     <version>3.0.0</version>
+                    <executions>
+                        <execution>
+                            <id>default-deploy</id>
+                            <phase>none</phase>
+                        </execution>
+                    </executions>
+                    <configuration>
+                        <skip>true</skip>
+                    </configuration>
                 </plugin>
                 <plugin>
                     <groupId>org.apache.maven.plugins</groupId>
@@ -160,22 +169,6 @@
                     <artifactId>wagon-maven-plugin</artifactId>
                     <version>2.0.0</version>
                 </plugin>
-                <plugin>
-                    <!--
-                        configuring nexus plugin for manual deployment after
-                        release with maven-release/deploy-plugin, see
-                        https://central.sonatype.org/publish/publish-maven/#manually-releasing-the-deployment-to-the-central-repository
-                     -->
-                    <groupId>org.sonatype.plugins</groupId>
-                    <artifactId>nexus-staging-maven-plugin</artifactId>
-                    <version>1.6.8</version>
-                    <extensions>true</extensions>
-                    <configuration>
-                        <serverId>ossrh</serverId>
-                        <nexusUrl>https://s01.oss.sonatype.org/</nexusUrl>
-                        <autoReleaseAfterClose>true</autoReleaseAfterClose>
-                    </configuration>
-                </plugin>
             </plugins>
         </pluginManagement>
         <plugins>
@@ -282,6 +275,24 @@
             </activation>
             <build>
                 <plugins>
+                    <plugin>
+                        <groupId>org.sonatype.central</groupId>
+                        <artifactId>central-publishing-maven-plugin</artifactId>
+                        <version>0.8.0</version>
+                        <extensions>true</extensions>
+                        <configuration>
+                            <publishingServerId>ossrh</publishingServerId>
+                        </configuration>
+                        <executions>
+                            <execution>
+                                <id>publish-to-central</id>
+                                <phase>deploy</phase>
+                                <goals>
+                                    <goal>publish</goal>
+                                </goals>
+                            </execution>
+                        </executions>
+                    </plugin>
                     <plugin>
                         <groupId>org.apache.maven.plugins</groupId>
                         <artifactId>maven-gpg-plugin</artifactId>
@@ -341,11 +352,11 @@
     <distributionManagement>
         <snapshotRepository>
             <id>ossrh</id>
-            <url>https://s01.oss.sonatype.org/content/repositories/snapshots</url>
+            <url>https://ossrh-staging-api.central.sonatype.com/content/repositories/snapshots</url>
         </snapshotRepository>
         <repository>
             <id>ossrh</id>
-            <url>https://s01.oss.sonatype.org/service/local/staging/deploy/maven2/</url>
+            <url>https://ossrh-staging-api.central.sonatype.com/service/local/staging/deploy/maven2/</url>
         </repository>
     </distributionManagement>
 </project>
diff --git a/qudtlib-common-codegen/pom.xml b/qudtlib-common-codegen/pom.xml
index 117739fc..4ee1dd67 100644
--- a/qudtlib-common-codegen/pom.xml
+++ b/qudtlib-common-codegen/pom.xml
@@ -5,6 +5,7 @@
         <groupId>io.github.qudtlib</groupId>
         <version>6.8.2-SNAPSHOT</version>
     </parent>
+    <name>qudtlib-common-codegen</name>
     <modelVersion>4.0.0</modelVersion>
 
     <artifactId>qudtlib-common-codegen</artifactId>
diff --git a/qudtlib-common-rdf/pom.xml b/qudtlib-common-rdf/pom.xml
index 2f4663b9..f41ca6dd 100644
--- a/qudtlib-common-rdf/pom.xml
+++ b/qudtlib-common-rdf/pom.xml
@@ -6,7 +6,7 @@
         <version>6.8.2-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
-
+    <name>qudtlib-common-rdf</name>
     <artifactId>qudtlib-common-rdf</artifactId>
 
     <dependencies>
diff --git a/qudtlib-constants-gen/pom.xml b/qudtlib-constants-gen/pom.xml
index 63c6117d..b621fd2f 100644
--- a/qudtlib-constants-gen/pom.xml
+++ b/qudtlib-constants-gen/pom.xml
@@ -8,7 +8,7 @@
     <modelVersion>4.0.0</modelVersion>
     <artifactId>qudtlib-constants-gen</artifactId>
     <packaging>jar</packaging>
-
+    <name>qudtlib-constants-gen</name>
     <dependencies>
         <dependency>
             <groupId>io.github.qudtlib</groupId>
diff --git a/qudtlib-data-gen/pom.xml b/qudtlib-data-gen/pom.xml
index 47d41d56..4e8b64aa 100644
--- a/qudtlib-data-gen/pom.xml
+++ b/qudtlib-data-gen/pom.xml
@@ -8,6 +8,7 @@
     <modelVersion>4.0.0</modelVersion>
     <artifactId>qudtlib-data-gen</artifactId>
     <packaging>jar</packaging>
+    <name>qudtlib-data-gen</name>
     <dependencies>
         <dependency>
             <groupId>io.github.qudtlib</groupId>
diff --git a/qudtlib-data-gen/src/main/resources/update-units-by-query1.rq b/qudtlib-data-gen/src/main/resources/update-units-by-query1.rq
index bd8494c2..798dec3e 100644
--- a/qudtlib-data-gen/src/main/resources/update-units-by-query1.rq
+++ b/qudtlib-data-gen/src/main/resources/update-units-by-query1.rq
@@ -9,10 +9,7 @@ INSERT {
         WHERE
         {
             {
-                ?other
-                    qudt:hasFactorUnit [
-                        qudt:hasUnit ?unit ;
-                    ] ;
+                ?other ( qudt:hasFactorUnit/qudt:hasUnit )+ ?unit ;
             } UNION {
                  ?other
                         qudt:scalingOf ?unit
diff --git a/qudtlib-data/pom.xml b/qudtlib-data/pom.xml
index 43527fca..a9303ac9 100644
--- a/qudtlib-data/pom.xml
+++ b/qudtlib-data/pom.xml
@@ -8,6 +8,7 @@
     <modelVersion>4.0.0</modelVersion>
     <artifactId>qudtlib-data</artifactId>
     <packaging>jar</packaging>
+    <name>qudtlib-data</name>
 
     <properties>
         <qudtlib.generate.dir>${project.build.directory}/generated-resources/qudtlib</qudtlib.generate.dir>
diff --git a/qudtlib-example/README.md b/qudtlib-example/README.md
index 5499e633..f094fd5c 100644
--- a/qudtlib-example/README.md
+++ b/qudtlib-example/README.md
@@ -9,6 +9,7 @@ Here are the important bits:
 	<groupId>io.github.qudtlib</groupId>
 	<artifactId>qudtlib</artifactId>
 	<version>${project.version}</version> <!-- remember to use the latest version -->
+	<type>pom</type>
 </dependency>
 ```
 
diff --git a/qudtlib-example/pom.xml b/qudtlib-example/pom.xml
index 3a9a25d4..f9a9f597 100644
--- a/qudtlib-example/pom.xml
+++ b/qudtlib-example/pom.xml
@@ -6,14 +6,14 @@
         <version>6.8.2-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
-
+    <name>qudtlib-example</name>
     <artifactId>qudtlib-example</artifactId>
-
     <dependencies>
         <dependency>
             <groupId>io.github.qudtlib</groupId>
             <artifactId>qudtlib</artifactId>
             <version>${project.version}</version>
+            <type>pom</type>
         </dependency>
     </dependencies>
     <build>
diff --git a/qudtlib-hardcoded-model-gen/pom.xml b/qudtlib-hardcoded-model-gen/pom.xml
index 291fdf7d..a24f41cb 100644
--- a/qudtlib-hardcoded-model-gen/pom.xml
+++ b/qudtlib-hardcoded-model-gen/pom.xml
@@ -8,11 +8,13 @@
     <modelVersion>4.0.0</modelVersion>
     <artifactId>qudtlib-hardcoded-model-gen</artifactId>
     <packaging>jar</packaging>
+    <name>qudtlib-hardcoded-model-gen</name>
     <dependencies>
         <dependency>
             <groupId>io.github.qudtlib</groupId>
             <artifactId>qudtlib-main-rdf</artifactId>
             <version>${project.version}</version>
+            <type>pom</type>
         </dependency>
         <dependency>
             <groupId>io.github.qudtlib</groupId>
diff --git a/qudtlib-ingest-qudt/pom.xml b/qudtlib-ingest-qudt/pom.xml
index f8c96373..9bf39469 100644
--- a/qudtlib-ingest-qudt/pom.xml
+++ b/qudtlib-ingest-qudt/pom.xml
@@ -8,6 +8,7 @@
     <modelVersion>4.0.0</modelVersion>
     <artifactId>qudtlib-ingest-qudt</artifactId>
     <packaging>jar</packaging>
+    <name>qudtlib-ingest-qudt</name>
     <properties>
         <qudt.unpack.dir>${project.build.directory}/generated-resources/qudt</qudt.unpack.dir>
         <qudtlib.generate.dir>${project.build.directory}/generated-resources/qudtlib</qudtlib.generate.dir>
diff --git a/qudtlib-init-hardcoded/pom.xml b/qudtlib-init-hardcoded/pom.xml
index f50a76ab..a76d0332 100644
--- a/qudtlib-init-hardcoded/pom.xml
+++ b/qudtlib-init-hardcoded/pom.xml
@@ -8,6 +8,7 @@
     <modelVersion>4.0.0</modelVersion>
     <artifactId>qudtlib-init-hardcoded</artifactId>
     <packaging>jar</packaging>
+    <name>qudtlib-init-hardcoded</name>
     <dependencies>
         <dependency>
             <groupId>io.github.qudtlib</groupId>
diff --git a/qudtlib-init-rdf/pom.xml b/qudtlib-init-rdf/pom.xml
index 50aee240..ae51a095 100644
--- a/qudtlib-init-rdf/pom.xml
+++ b/qudtlib-init-rdf/pom.xml
@@ -8,7 +8,7 @@
     <modelVersion>4.0.0</modelVersion>
     <artifactId>qudtlib-init-rdf</artifactId>
     <packaging>jar</packaging>
-
+    <name>qudtlib-init-rdf</name>
     <dependencies>
         <dependency>
             <groupId>io.github.qudtlib</groupId>
diff --git a/qudtlib-js-gen/pom.xml b/qudtlib-js-gen/pom.xml
index c3a5a204..bc38b481 100644
--- a/qudtlib-js-gen/pom.xml
+++ b/qudtlib-js-gen/pom.xml
@@ -6,9 +6,8 @@
         <version>6.8.2-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
-
+    <name>qudtlib-js-gen</name>
     <artifactId>qudtlib-js-gen</artifactId>
-
     <dependencies>
         <dependency>
             <groupId>io.github.qudtlib</groupId>
diff --git a/qudtlib-main-rdf/pom.xml b/qudtlib-main-rdf/pom.xml
index 16592dfa..9b808d9c 100644
--- a/qudtlib-main-rdf/pom.xml
+++ b/qudtlib-main-rdf/pom.xml
@@ -6,9 +6,9 @@
         <version>6.8.2-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
-
+    <name>qudtlib-main-rdf></name>
     <artifactId>qudtlib-main-rdf</artifactId>
-    <packaging>jar</packaging>
+    <packaging>pom</packaging>
 
     <dependencies>
         <dependency>
diff --git a/qudtlib-main/pom.xml b/qudtlib-main/pom.xml
index 774bf12c..bfad389e 100644
--- a/qudtlib-main/pom.xml
+++ b/qudtlib-main/pom.xml
@@ -8,6 +8,7 @@
     <modelVersion>4.0.0</modelVersion>
     <artifactId>qudtlib-main</artifactId>
     <packaging>jar</packaging>
+    <name>qudtlib-main</name>
     <dependencies>
         <dependency>
             <groupId>io.github.qudtlib</groupId>
diff --git a/qudtlib-model/pom.xml b/qudtlib-model/pom.xml
index e14f323c..02a47c91 100644
--- a/qudtlib-model/pom.xml
+++ b/qudtlib-model/pom.xml
@@ -5,6 +5,7 @@
         <groupId>io.github.qudtlib</groupId>
         <version>6.8.2-SNAPSHOT</version>
     </parent>
+    <name>qudtlib-model</name>
     <modelVersion>4.0.0</modelVersion>
     <packaging>jar</packaging>
     <artifactId>qudtlib-model</artifactId>
diff --git a/qudtlib-test/pom.xml b/qudtlib-test/pom.xml
index c5328107..3cf4371e 100644
--- a/qudtlib-test/pom.xml
+++ b/qudtlib-test/pom.xml
@@ -8,6 +8,7 @@
     <modelVersion>4.0.0</modelVersion>
     <artifactId>qudtlib-test</artifactId>
     <packaging>jar</packaging>
+    <name>qudtlib-test</name>
     <dependencies>
         <dependency>
             <groupId>io.github.qudtlib</groupId>
diff --git a/qudtlib-tools/pom.xml b/qudtlib-tools/pom.xml
index b082185c..894504a6 100644
--- a/qudtlib-tools/pom.xml
+++ b/qudtlib-tools/pom.xml
@@ -6,10 +6,9 @@
         <version>6.8.2-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
-
     <artifactId>qudtlib-tools</artifactId>
     <packaging>jar</packaging>
-
+    <name>qudtlib-tools</name>
     <dependencies>
         <dependency>
             <groupId>   io.github.qudtlib</groupId>
diff --git a/qudtlib-vocab/pom.xml b/qudtlib-vocab/pom.xml
index 24f6e4af..d0946e38 100644
--- a/qudtlib-vocab/pom.xml
+++ b/qudtlib-vocab/pom.xml
@@ -6,17 +6,15 @@
         <version>6.8.2-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
-
     <artifactId>qudtlib-vocab</artifactId>
     <packaging>jar</packaging>
-
+    <name>qudtlib-vocab</name>
     <dependencies>
         <dependency>
             <groupId>org.eclipse.rdf4j</groupId>
             <artifactId>rdf4j-model</artifactId>
         </dependency>
     </dependencies>
-
     <build>
         <plugins>
             <plugin>
diff --git a/qudtlib/pom.xml b/qudtlib/pom.xml
index fdd3fec4..73ac9605 100644
--- a/qudtlib/pom.xml
+++ b/qudtlib/pom.xml
@@ -6,8 +6,9 @@
         <version>6.8.2-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
-    <packaging>jar</packaging>
+    <packaging>pom</packaging>
     <artifactId>qudtlib</artifactId>
+    <name>qudtlib</name>
     <dependencies>
         <dependency>
             <groupId>io.github.qudtlib</groupId>