diff --git a/.github/workflows/maven.yml b/.github/workflows/maven.yml
index 4e126b1..501f876 100644
--- a/.github/workflows/maven.yml
+++ b/.github/workflows/maven.yml
@@ -1,6 +1,3 @@
-# This workflow will build a Java project with Maven, and cache/restore any dependencies to improve the workflow execution time
-# For more information see: https://help.github.com/actions/language-and-framework-guides/building-and-testing-java-with-maven
-
 name: Java CI with Maven
 
 on:
@@ -13,12 +10,12 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4 # https://github.com/actions/checkout
 
-      - name: Set up JDK 17
-        uses: actions/setup-java@v3
+      - name: Set up JDK 21 # https://github.com/actions/setup-java
+        uses: actions/setup-java@v4
         with:
-          java-version: '17'
+          java-version: '21'
           distribution: 'temurin'
           cache: maven
 
diff --git a/pom.xml b/pom.xml
index 83b20a7..42b26ae 100644
--- a/pom.xml
+++ b/pom.xml
@@ -9,17 +9,23 @@
     <artifactId>world1-6trafficlights</artifactId>
     <version>1.0-SNAPSHOT</version>
 
-    <properties>
-        <maven.compiler.source>17</maven.compiler.source>
-        <maven.compiler.target>17</maven.compiler.target>
-    </properties>
-
     <build>
         <plugins>
+            <!-- https://mvnrepository.com/artifact/org.apache.maven.plugins/maven-compiler-plugin -->
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>3.13.0</version>
+                <configuration>
+                    <source>21</source>
+                    <target>21</target>
+                </configuration>
+            </plugin>
+            <!-- https://mvnrepository.com/artifact/org.apache.maven.plugins/maven-shade-plugin -->
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-shade-plugin</artifactId>
-                <version>3.4.1</version>
+                <version>3.6.0</version>
                 <executions>
                     <execution>
                         <phase>package</phase>
@@ -51,14 +57,14 @@
         <dependency>
             <groupId>io.papermc.paper</groupId>
             <artifactId>paper-api</artifactId>
-            <version>1.19.3-R0.1-SNAPSHOT</version>
+            <version>1.21-R0.1-SNAPSHOT</version>
             <scope>provided</scope>
         </dependency>
 
         <dependency>
             <groupId>com.github.World1-6.World1-6Utils</groupId>
             <artifactId>World1-6Utils-Plugin</artifactId>
-            <version>0edba07f</version>
+            <version>634da50bcc</version>
             <scope>provided</scope>
         </dependency>
     </dependencies>
diff --git a/src/main/java/com/andrew121410/mc/world16trafficlights/TrafficLight.java b/src/main/java/com/andrew121410/mc/world16trafficlights/TrafficLight.java
index 213cb15..e1c7fcb 100644
--- a/src/main/java/com/andrew121410/mc/world16trafficlights/TrafficLight.java
+++ b/src/main/java/com/andrew121410/mc/world16trafficlights/TrafficLight.java
@@ -72,7 +72,7 @@ public boolean yellow() {
         if (isBanner()) {
             Banner banner = (Banner) location.getBlock().getState();
             List<Pattern> patterns = new ArrayList<>();
-            patterns.add(new Pattern(DyeColor.YELLOW, PatternType.CIRCLE_MIDDLE));
+            patterns.add(new Pattern(DyeColor.YELLOW, PatternType.GLOBE)); // CIRCLE_MIDDLE
             banner.setPatterns(patterns);
             banner.update();
         } else {