diff --git a/Bukkit/pom.xml b/Bukkit/pom.xml
index 52ab7e4..9d09de2 100644
--- a/Bukkit/pom.xml
+++ b/Bukkit/pom.xml
@@ -31,6 +31,7 @@
                 <configuration>
                     <source>17</source>
                     <target>17</target>
+                    <release>17</release>
                 </configuration>
             </plugin>
             <plugin>
diff --git a/BukkitBase/pom.xml b/BukkitBase/pom.xml
index 7296342..dad6f05 100644
--- a/BukkitBase/pom.xml
+++ b/BukkitBase/pom.xml
@@ -31,6 +31,7 @@
                 <configuration>
                     <source>17</source>
                     <target>17</target>
+                    <release>17</release>
                 </configuration>
             </plugin>
             <plugin>
diff --git a/Core/pom.xml b/Core/pom.xml
index 2bab3c9..aac74d7 100644
--- a/Core/pom.xml
+++ b/Core/pom.xml
@@ -31,6 +31,7 @@
                 <configuration>
                     <source>17</source>
                     <target>17</target>
+                    <release>17</release>
                 </configuration>
             </plugin>
             <plugin>
diff --git a/Paper/pom.xml b/Paper/pom.xml
index 05997fc..24602d1 100644
--- a/Paper/pom.xml
+++ b/Paper/pom.xml
@@ -29,8 +29,9 @@
                 <artifactId>maven-compiler-plugin</artifactId>
                 <version>3.8.1</version>
                 <configuration>
-                    <source>17</source>
-                    <target>17</target>
+                    <source>21</source>
+                    <target>21</target>
+                    <release>21</release>
                 </configuration>
             </plugin>
             <plugin>
diff --git a/TNIL-Sponge/pom.xml b/TNIL-Sponge/pom.xml
index 4dc9d14..0f4a0a1 100644
--- a/TNIL-Sponge/pom.xml
+++ b/TNIL-Sponge/pom.xml
@@ -33,6 +33,7 @@
                 <configuration>
                     <source>17</source>
                     <target>17</target>
+                    <release>17</release>
                 </configuration>
             </plugin>
             <plugin>
diff --git a/pom.xml b/pom.xml
index 5654311..028cf90 100644
--- a/pom.xml
+++ b/pom.xml
@@ -36,6 +36,7 @@
                 <configuration>
                     <source>17</source>
                     <target>17</target>
+                    <release>17</release>
                 </configuration>
             </plugin>
             <plugin>