diff --git a/.forgejo/workflows/build.yaml b/.forgejo/workflows/build.yaml
new file mode 100644
index 0000000..46b697a
--- /dev/null
+++ b/.forgejo/workflows/build.yaml
@@ -0,0 +1,29 @@
+name: Java CI
+on: [push]
+
+jobs:
+  build:
+    name: Build
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: https://gitea.com/actions/checkout@v4
+
+      - name: Set up JDK 21
+        uses: https://gitea.com/actions/setup-java@v4
+        with:
+          distribution: 'temurin'
+          java-version: 21
+
+      - name: Set up Maven
+        uses: https://gitea.com/actions/setup-maven@v5
+
+      - name: Build with Maven
+        run: mvn -B package --file pom.xml
+
+      - name: Upload build artifacts
+        uses: https://gitea.com/actions/upload-artifact@v3
+        with:
+          name: MapReflectionAPI
+          path: target
\ No newline at end of file
diff --git a/jitpack.yml b/jitpack.yml
deleted file mode 100644
index 46c8529..0000000
--- a/jitpack.yml
+++ /dev/null
@@ -1,2 +0,0 @@
-jdk:
-  - openjdk11
\ No newline at end of file
diff --git a/src/main/java/tech/sbdevelopment/mapreflectionapi/api/MapWrapper.java b/src/main/java/tech/sbdevelopment/mapreflectionapi/api/MapWrapper.java
index c2b6edd..f8dd0d6 100644
--- a/src/main/java/tech/sbdevelopment/mapreflectionapi/api/MapWrapper.java
+++ b/src/main/java/tech/sbdevelopment/mapreflectionapi/api/MapWrapper.java
@@ -168,7 +168,7 @@ public class MapWrapper extends AbstractMapWrapper {
             String inventoryMenuName;
             if (supports(21)) {
                 //1.21.5 = bQ, 1.21 - 1.21.4 = cc
-                inventoryMenuName = supports(21, 4) ? "bQ" : "cc";
+                inventoryMenuName = supports(21, 5) ? "bQ" : "cc";
             } else if (supports(20)) {
                 //1.20.5 = cb, 1.20.2 - 1.20.4 = bR, 1.20(.1) = bQ
                 inventoryMenuName = supports(20, 4) ? "cb" : supports(20, 2) ? "bR" : "bQ";
@@ -293,7 +293,7 @@ public class MapWrapper extends AbstractMapWrapper {
 
             //1.20.5 uses new NBT compound system
             if (supports(20, 4)) {
-                Object mapIdComponent = ReflectionUtil.getDeclaredField(getNMSClass("core.component", "DataComponents"), supports(21, 4) ? "M" : supports(21, 2) ? "L" : "B"); //1.21.2+ uses L, otherwise B
+                Object mapIdComponent = ReflectionUtil.getDeclaredField(getNMSClass("core.component", "DataComponents"), supports(21, 5) ? "M" : supports(21, 2) ? "L" : "B"); //1.21.2+ uses L, otherwise B
                 Object mapId1 = ReflectionUtil.callConstructor(getNMSClass("world.level.saveddata.maps", "MapId"), mapId);
 
                 // Use generic reflection because of generics