diff --git a/data-node/pom.xml b/data-node/pom.xml
index cdb77c160073..87accc0a133b 100644
--- a/data-node/pom.xml
+++ b/data-node/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <groupId>org.graylog</groupId>
         <artifactId>graylog-project-parent</artifactId>
-        <version>6.0.0-SNAPSHOT</version>
+        <version>6.0.0-rc.4</version>
         <relativePath>../graylog-project-parent</relativePath>
     </parent>
 
diff --git a/distribution/pom.xml b/distribution/pom.xml
index 548d3ee303f5..9614e75118c3 100644
--- a/distribution/pom.xml
+++ b/distribution/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <artifactId>graylog-parent</artifactId>
         <groupId>org.graylog</groupId>
-        <version>6.0.0-SNAPSHOT</version>
+        <version>6.0.0-rc.4</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/full-backend-tests/pom.xml b/full-backend-tests/pom.xml
index 1cc81913025f..f1c2fd59be5f 100644
--- a/full-backend-tests/pom.xml
+++ b/full-backend-tests/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <groupId>org.graylog</groupId>
         <artifactId>graylog-project-parent</artifactId>
-        <version>6.0.0-SNAPSHOT</version>
+        <version>6.0.0-rc.4</version>
         <relativePath>../graylog-project-parent</relativePath>
     </parent>
 
diff --git a/graylog-plugin-archetype/pom.xml b/graylog-plugin-archetype/pom.xml
index db752b5c6cb6..c8b0d3702786 100644
--- a/graylog-plugin-archetype/pom.xml
+++ b/graylog-plugin-archetype/pom.xml
@@ -22,7 +22,7 @@
     <parent>
         <groupId>org.graylog</groupId>
         <artifactId>graylog-project-parent</artifactId>
-        <version>6.0.0-SNAPSHOT</version>
+        <version>6.0.0-rc.4</version>
         <relativePath>../graylog-project-parent</relativePath>
     </parent>
 
diff --git a/graylog-plugin-parent/graylog-plugin-web-parent/pom.xml b/graylog-plugin-parent/graylog-plugin-web-parent/pom.xml
index 08db8471cebe..9436eb57a75b 100644
--- a/graylog-plugin-parent/graylog-plugin-web-parent/pom.xml
+++ b/graylog-plugin-parent/graylog-plugin-web-parent/pom.xml
@@ -22,7 +22,7 @@
     <parent>
         <groupId>org.graylog.plugins</groupId>
         <artifactId>graylog-plugin-parent</artifactId>
-        <version>6.0.0-SNAPSHOT</version>
+        <version>6.0.0-rc.4</version>
     </parent>
 
     <artifactId>graylog-plugin-web-parent</artifactId>
diff --git a/graylog-plugin-parent/pom.xml b/graylog-plugin-parent/pom.xml
index f600f5fdf212..3f8209c2a962 100644
--- a/graylog-plugin-parent/pom.xml
+++ b/graylog-plugin-parent/pom.xml
@@ -26,7 +26,7 @@
     <parent>
         <groupId>org.graylog</groupId>
         <artifactId>graylog-parent</artifactId>
-        <version>6.0.0-SNAPSHOT</version>
+        <version>6.0.0-rc.4</version>
     </parent>
 
     <groupId>org.graylog.plugins</groupId>
diff --git a/graylog-project-parent/pom.xml b/graylog-project-parent/pom.xml
index b45fc74b5758..cbd7353d93a1 100644
--- a/graylog-project-parent/pom.xml
+++ b/graylog-project-parent/pom.xml
@@ -27,7 +27,7 @@
     <parent>
         <groupId>org.graylog</groupId>
         <artifactId>graylog-parent</artifactId>
-        <version>6.0.0-SNAPSHOT</version>
+        <version>6.0.0-rc.4</version>
     </parent>
 
     <artifactId>graylog-project-parent</artifactId>
diff --git a/graylog-storage-elasticsearch7/pom.xml b/graylog-storage-elasticsearch7/pom.xml
index c556618311d1..0f91a3938ef9 100644
--- a/graylog-storage-elasticsearch7/pom.xml
+++ b/graylog-storage-elasticsearch7/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <groupId>org.graylog.plugins</groupId>
         <artifactId>graylog-plugin-parent</artifactId>
-        <version>6.0.0-SNAPSHOT</version>
+        <version>6.0.0-rc.4</version>
         <relativePath>../graylog-plugin-parent</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/graylog-storage-opensearch2/pom.xml b/graylog-storage-opensearch2/pom.xml
index 65101e9e21ab..edb91369660f 100644
--- a/graylog-storage-opensearch2/pom.xml
+++ b/graylog-storage-opensearch2/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <groupId>org.graylog.plugins</groupId>
         <artifactId>graylog-plugin-parent</artifactId>
-        <version>6.0.0-SNAPSHOT</version>
+        <version>6.0.0-rc.4</version>
         <relativePath>../graylog-plugin-parent</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/graylog2-server/pom.xml b/graylog2-server/pom.xml
index 5da62d2b184e..75569ecc9a7b 100644
--- a/graylog2-server/pom.xml
+++ b/graylog2-server/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <groupId>org.graylog</groupId>
         <artifactId>graylog-project-parent</artifactId>
-        <version>6.0.0-SNAPSHOT</version>
+        <version>6.0.0-rc.4</version>
         <relativePath>../graylog-project-parent</relativePath>
     </parent>
 
diff --git a/pom.xml b/pom.xml
index 7aca278dc718..2a9705a1951e 100644
--- a/pom.xml
+++ b/pom.xml
@@ -30,7 +30,7 @@
 
     <groupId>org.graylog</groupId>
     <artifactId>graylog-parent</artifactId>
-    <version>6.0.0-SNAPSHOT</version>
+    <version>6.0.0-rc.4</version>
     <packaging>pom</packaging>
 
     <name>Graylog Parent POM</name>