diff --git a/api/pom.xml b/api/pom.xml
index 7e70b5104..ad2cd2fee 100644
--- a/api/pom.xml
+++ b/api/pom.xml
@@ -10,6 +10,7 @@
     <modelVersion>4.0.0</modelVersion>
 
     <artifactId>luckperms-api</artifactId>
+
     <build>
         <finalName>LuckPerms-API-${release.version}</finalName>
         <resources>
diff --git a/bukkit-legacy/pom.xml b/bukkit-legacy/pom.xml
index ddcd7615e..638249e97 100644
--- a/bukkit-legacy/pom.xml
+++ b/bukkit-legacy/pom.xml
@@ -10,6 +10,7 @@
     <modelVersion>4.0.0</modelVersion>
 
     <artifactId>luckperms-bukkit-legacy</artifactId>
+
     <build>
         <defaultGoal>clean package</defaultGoal>
         <finalName>LuckPerms-Bukkit-Legacy-${full.version}</finalName>
diff --git a/bukkit/src/main/resources/plugin.yml b/bukkit/src/main/resources/plugin.yml
index 6254d0364..3d34d2f18 100644
--- a/bukkit/src/main/resources/plugin.yml
+++ b/bukkit/src/main/resources/plugin.yml
@@ -1,5 +1,5 @@
 name: LuckPerms
-version: ${release.version}.${patch.version}
+version: ${full.version}
 description: A permissions plugin
 author: Luck
 website: https://github.com/lucko/LuckPerms
diff --git a/bungee/src/main/resources/plugin.yml b/bungee/src/main/resources/plugin.yml
index 2706b564c..aaa852aaa 100644
--- a/bungee/src/main/resources/plugin.yml
+++ b/bungee/src/main/resources/plugin.yml
@@ -1,5 +1,5 @@
 name: LuckPerms
-version: ${release.version}.${patch.version}
+version: ${full.version}
 description: A permissions plugin
 author: Luck
 main: me.lucko.luckperms.bungee.LPBungeePlugin
diff --git a/pom.xml b/pom.xml
index e7e1b679d..726d6c47e 100644
--- a/pom.xml
+++ b/pom.xml
@@ -7,6 +7,7 @@
     <groupId>me.lucko.luckperms</groupId>
     <artifactId>luckperms</artifactId>
     <version>3.1-SNAPSHOT</version>
+
     <modules>
         <module>api</module>
         <module>common</module>
diff --git a/sponge/pom.xml b/sponge/pom.xml
index 78c9bcf8a..0f5c0b6db 100644
--- a/sponge/pom.xml
+++ b/sponge/pom.xml
@@ -75,7 +75,7 @@
         <dependency>
             <groupId>org.spongepowered</groupId>
             <artifactId>spongeapi</artifactId>
-            <version>5.1.0</version>
+            <version>6.0.0</version>
             <scope>provided</scope>
         </dependency>
         <!-- LuckPerms Common -->
diff --git a/sponge/src/main/java/me/lucko/luckperms/sponge/managers/SpongeGroupManager.java b/sponge/src/main/java/me/lucko/luckperms/sponge/managers/SpongeGroupManager.java
index 2d6f39547..d2b438abf 100644
--- a/sponge/src/main/java/me/lucko/luckperms/sponge/managers/SpongeGroupManager.java
+++ b/sponge/src/main/java/me/lucko/luckperms/sponge/managers/SpongeGroupManager.java
@@ -40,10 +40,10 @@ import me.lucko.luckperms.api.HeldPermission;
 import me.lucko.luckperms.api.Tristate;
 import me.lucko.luckperms.api.context.ImmutableContextSet;
 import me.lucko.luckperms.api.event.cause.CreationCause;
+import me.lucko.luckperms.common.constants.DataConstraints;
 import me.lucko.luckperms.common.core.model.Group;
 import me.lucko.luckperms.common.managers.GroupManager;
 import me.lucko.luckperms.common.utils.ImmutableCollectors;
-import me.lucko.luckperms.common.utils.Predicates;
 import me.lucko.luckperms.sponge.LPSpongePlugin;
 import me.lucko.luckperms.sponge.model.SpongeGroup;
 import me.lucko.luckperms.sponge.service.LuckPermsService;
@@ -184,12 +184,17 @@ public class SpongeGroupManager implements GroupManager, LPSubjectCollection {
 
     @Override
     public Predicate<String> getIdentifierValidityPredicate() {
-        // TODO change this to use the actual limitations
-        return Predicates.alwaysTrue();
+        return DataConstraints.GROUP_NAME_TEST;
     }
 
     @Override
     public CompletableFuture<LPSubject> loadSubject(String identifier) {
+        if (!DataConstraints.GROUP_NAME_TEST.test(identifier)) {
+            CompletableFuture<LPSubject> fut = new CompletableFuture<>();
+            fut.completeExceptionally(new IllegalArgumentException("Illegal subject identifier"));
+            return fut;
+        }
+
         LPSubject present = subjectLoadingCache.getIfPresent(identifier.toLowerCase());
         if (present != null) {
             return CompletableFuture.completedFuture(present);