diff --git a/pom.xml b/pom.xml
index 0e372a6a..5b51553a 100644
--- a/pom.xml
+++ b/pom.xml
@@ -17,7 +17,7 @@
 		<project.fullVersion>${project.version}</project.fullVersion>
 
 		<powermock.version>2.0.4</powermock.version>
-		<spigot.version>1.15-R0.1-SNAPSHOT</spigot.version>
+		<spigot.version>1.15.1-R0.1-SNAPSHOT</spigot.version>
 	</properties>
 
 	<build>
@@ -146,6 +146,7 @@
 			<properties>
 				<project.build.number>-b${env.BUILD_NUMBER}</project.build.number>
 				<project.fullVersion>${project.version}${project.build.number}</project.fullVersion>
+				<!--<project.fullVersion>${project.version}</project.fullVersion>-->
 			</properties>
 		</profile>
 
diff --git a/src/main/java/com/comphenix/protocol/ProtocolLibrary.java b/src/main/java/com/comphenix/protocol/ProtocolLibrary.java
index 261d5635..5a456545 100644
--- a/src/main/java/com/comphenix/protocol/ProtocolLibrary.java
+++ b/src/main/java/com/comphenix/protocol/ProtocolLibrary.java
@@ -39,12 +39,12 @@ public class ProtocolLibrary {
 	/**
 	 * The maximum version ProtocolLib has been tested with.
 	 */
-	public static final String MAXIMUM_MINECRAFT_VERSION = "1.14.4";
+	public static final String MAXIMUM_MINECRAFT_VERSION = "1.15.1";
 
 	/**
 	 * The date (with ISO 8601 or YYYY-MM-DD) when the most recent version (1.14.4) was released.
 	 */
-	public static final String MINECRAFT_LAST_RELEASE_DATE = "2019-07-19";
+	public static final String MINECRAFT_LAST_RELEASE_DATE = "2019-12-17";
 
 	/**
 	 * Plugins that are currently incompatible with ProtocolLib.