diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index f490561..ed4f022 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -18,6 +18,10 @@ on:
         required: false
         default: 'false'
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: false
+
 jobs:
   build:
     runs-on: ubuntu-latest
diff --git a/build.gradle b/build.gradle
index 85363e4..9a49f8a 100644
--- a/build.gradle
+++ b/build.gradle
@@ -19,6 +19,7 @@ repositories {
     maven {
         name = 'TDLM Maven'
         url = 'https://git.nest.potatolab.uk:8443/api/packages/TDLM/maven'
+        content { includeGroup "uk.potatolab" }
         if (System.getenv('MAVEN_USER') && System.getenv('MAVEN_PASSWORD')) {
             credentials {
                 username = System.getenv('MAVEN_USER')
diff --git a/src/main/java/com/pengu/thaumcraft/additions/tileentity/TileReturner.java b/src/main/java/com/pengu/thaumcraft/additions/tileentity/TileReturner.java
index ddce59a..aaa36dc 100644
--- a/src/main/java/com/pengu/thaumcraft/additions/tileentity/TileReturner.java
+++ b/src/main/java/com/pengu/thaumcraft/additions/tileentity/TileReturner.java
@@ -10,6 +10,10 @@ public class TileReturner extends TileEntity {
    public int y = 0;
    public int z = 0;
 
+   @Override
+   public boolean canUpdate() {
+      return false;
+   }
 
    public TileReturner setDim(int dimID) {
       this.dimensionId = dimID;
diff --git a/src/main/java/com/pengu/thaumcraft/additions/tileentity/TileVoidChest.java b/src/main/java/com/pengu/thaumcraft/additions/tileentity/TileVoidChest.java
index 555bee8..3721243 100644
--- a/src/main/java/com/pengu/thaumcraft/additions/tileentity/TileVoidChest.java
+++ b/src/main/java/com/pengu/thaumcraft/additions/tileentity/TileVoidChest.java
@@ -54,6 +54,11 @@ public class TileVoidChest extends TileThaumcraft implements IInventory, ISidedI
 
    public void updateEntity() {}
 
+   @Override
+   public boolean canUpdate() {
+      return false;
+   }
+
    public int getSizeInv() {
       return this.slots.length;
    }