diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 83a5e82..f452994 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -16,7 +16,7 @@ jobs:
         uses: actions/setup-java@v6
         with:
           distribution: temurin
-          java-version: '25'
+          java-version: '21'
           cache: maven
 
       - name: Install shared plugin dependencies
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 4cab16c..8c26b47 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -13,6 +13,6 @@ jobs:
       contents: write
     uses: ./.github/workflows/maven-release.yml
     with:
-      java-version: '25'
+      java-version: '21'
       # Exact path, not a glob. {version} is replaced with the tag without v.
       artifact-path: target/geiger_counter-{version}.jar
diff --git a/pom.xml b/pom.xml
index 3cce599..ca98b82 100644
--- a/pom.xml
+++ b/pom.xml
@@ -12,10 +12,9 @@
     <url>tfminecraft.net</url>
 
     <properties>
-        <tlibs.version>1.1.0</tlibs.version>
+        <tlibs.version>1.1.1</tlibs.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <maven.compiler.source>21</maven.compiler.source>
-        <maven.compiler.target>21</maven.compiler.target>
+        <maven.compiler.release>21</maven.compiler.release>
     </properties>
 
     <repositories>
@@ -38,7 +37,7 @@
         <dependency>
             <groupId>io.papermc.paper</groupId>
             <artifactId>paper-api</artifactId>
-            <version>1.21.3-R0.1-SNAPSHOT</version>
+            <version>1.21.10-R0.1-SNAPSHOT</version>
             <scope>provided</scope>
         </dependency>
 
@@ -85,6 +84,11 @@
             </resource>
         </resources>
         <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>3.14.1</version>
+            </plugin>
             <!-- Shade bStats into the jar (relocated, as bStats requires) -->
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
diff --git a/src/main/resources/plugin.yml b/src/main/resources/plugin.yml
index 20de287..e770f29 100644
--- a/src/main/resources/plugin.yml
+++ b/src/main/resources/plugin.yml
@@ -2,7 +2,7 @@ main: tfmc.justin.geiger_counter
 version: ${project.version}
 name: geiger_counter
 author: Justin
-api-version: 1.21
+api-version: '1.21.10'
 depend: [TLibs]
 softdepend: [WorldGuard]
 commands: