diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 3f76fdb2..1e10d664 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -12,7 +12,7 @@ jobs:
       - name: Set up Java
         uses: actions/setup-java@v1
         with: # running setup-java again overwrites the settings.xml
-          java-version: 1.8
+          java-version: 11 
           server-id: ossrh # Value of the distributionManagement/repository/id field of the pom.xml
           server-username: MAVEN_CENTRAL_USERNAME # env variable for username in deploy
           server-password: MAVEN_CENTRAL_TOKEN # env variable for token in deploy
diff --git a/vertx-vaadin-flow-parent/vaadin-flow-sockjs/pom.xml b/vertx-vaadin-flow-parent/vaadin-flow-sockjs/pom.xml
index 87824a65..824e71a0 100644
--- a/vertx-vaadin-flow-parent/vaadin-flow-sockjs/pom.xml
+++ b/vertx-vaadin-flow-parent/vaadin-flow-sockjs/pom.xml
@@ -11,7 +11,7 @@
     <artifactId>vaadin-flow-sockjs</artifactId>
     <packaging>jar</packaging>
     <name>vaadin-flow-sockjs</name>
-    <version>23.0.0-SNAPSHOT</version>
+    <version>23.0.0-rc1</version>
     <description>Sockjs push connection implementation for Vaadin Flow</description>
     <url>https://github.com/mcollovati/vertx-vaadin</url>
 
diff --git a/vertx-vaadin-flow-parent/vertx-vaadin-flow/pom.xml b/vertx-vaadin-flow-parent/vertx-vaadin-flow/pom.xml
index 40004619..db45a980 100644
--- a/vertx-vaadin-flow-parent/vertx-vaadin-flow/pom.xml
+++ b/vertx-vaadin-flow-parent/vertx-vaadin-flow/pom.xml
@@ -11,7 +11,7 @@
     <artifactId>vertx-vaadin-flow</artifactId>
     <packaging>jar</packaging>
     <name>vertx-vaadin-flow</name>
-    <version>23.0.0-SNAPSHOT</version>
+    <version>23.0.0-rc1</version>
     <description>An adapter to run Vaadin Flow applications on Vertx</description>
     <url>https://github.com/mcollovati/vertx-vaadin</url>
 
diff --git a/vertx-vaadin-flow-parent/vertx-vaadin-tests/pom.xml b/vertx-vaadin-flow-parent/vertx-vaadin-tests/pom.xml
index 3ba793f9..9d796a4d 100644
--- a/vertx-vaadin-flow-parent/vertx-vaadin-tests/pom.xml
+++ b/vertx-vaadin-flow-parent/vertx-vaadin-tests/pom.xml
@@ -11,7 +11,7 @@
     </parent>
     <groupId>com.github.mcollovati.vertx.tests</groupId>
     <artifactId>vertx-vaadin-test</artifactId>
-    <version>23.0.0-SNAPSHOT</version>
+    <version>23.0.0-rc1</version>
     <name>vertx-vaadin tests</name>
     <packaging>pom</packaging>
     <properties>
diff --git a/vertx-vaadin-flow-parent/vertx-vaadin-tests/test-common/pom.xml b/vertx-vaadin-flow-parent/vertx-vaadin-tests/test-common/pom.xml
index e93d8da4..6c2da1ee 100644
--- a/vertx-vaadin-flow-parent/vertx-vaadin-tests/test-common/pom.xml
+++ b/vertx-vaadin-flow-parent/vertx-vaadin-tests/test-common/pom.xml
@@ -6,7 +6,7 @@
     <parent>
         <groupId>com.github.mcollovati.vertx.tests</groupId>
         <artifactId>vertx-vaadin-test</artifactId>
-        <version>23.0.0-SNAPSHOT</version>
+        <version>23.0.0-rc1</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>vertx-vaadin-test-common</artifactId>
diff --git a/vertx-vaadin-flow-parent/vertx-vaadin-tests/test-resources/pom.xml b/vertx-vaadin-flow-parent/vertx-vaadin-tests/test-resources/pom.xml
index 116fb0e5..0a90332a 100644
--- a/vertx-vaadin-flow-parent/vertx-vaadin-tests/test-resources/pom.xml
+++ b/vertx-vaadin-flow-parent/vertx-vaadin-tests/test-resources/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>com.github.mcollovati.vertx.tests</groupId>
         <artifactId>vertx-vaadin-test</artifactId>
-        <version>23.0.0-SNAPSHOT</version>
+        <version>23.0.0-rc1</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>vertx-vaadin-test-resources</artifactId>
diff --git a/vertx-vaadin-flow-parent/vertx-vaadin-tests/test-root-context/pom.xml b/vertx-vaadin-flow-parent/vertx-vaadin-tests/test-root-context/pom.xml
index 0373657a..93d6d0f2 100644
--- a/vertx-vaadin-flow-parent/vertx-vaadin-tests/test-root-context/pom.xml
+++ b/vertx-vaadin-flow-parent/vertx-vaadin-tests/test-root-context/pom.xml
@@ -6,7 +6,7 @@
     <parent>
         <groupId>com.github.mcollovati.vertx.tests</groupId>
         <artifactId>vertx-vaadin-test</artifactId>
-        <version>23.0.0-SNAPSHOT</version>
+        <version>23.0.0-rc1</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>vertx-vaadin-test-root-context</artifactId>
diff --git a/vertx-vaadin-flow-parent/vertx-vaadin-tests/test-scalability/pom.xml b/vertx-vaadin-flow-parent/vertx-vaadin-tests/test-scalability/pom.xml
index b1151b27..4652f987 100644
--- a/vertx-vaadin-flow-parent/vertx-vaadin-tests/test-scalability/pom.xml
+++ b/vertx-vaadin-flow-parent/vertx-vaadin-tests/test-scalability/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>com.github.mcollovati.vertx.tests</groupId>
         <artifactId>vertx-vaadin-test</artifactId>
-        <version>23.0.0-SNAPSHOT</version>
+        <version>23.0.0-rc1</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>vertx-vaadin-test-scalability</artifactId>