diff --git a/bukkit/pom.xml b/bukkit/pom.xml
index d8347f1cb..f72fa8e51 100644
--- a/bukkit/pom.xml
+++ b/bukkit/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>viaversion-parent</artifactId>
         <groupId>us.myles</groupId>
-        <version>1.2.0-17w31a-SNAPSHOT</version>
+        <version>1.2.0-1_12_1-pre1</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/bungee/pom.xml b/bungee/pom.xml
index bdc2bf389..6224c4b5d 100644
--- a/bungee/pom.xml
+++ b/bungee/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>viaversion-parent</artifactId>
         <groupId>us.myles</groupId>
-        <version>1.2.0-17w31a-SNAPSHOT</version>
+        <version>1.2.0-1_12_1-pre1</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
@@ -37,7 +37,7 @@
         <dependency>
             <groupId>us.myles</groupId>
             <artifactId>viaversion-common</artifactId>
-            <version>1.2.0-17w31a-SNAPSHOT</version>
+            <version>1.2.0-1_12_1-pre1</version>
         </dependency>
     </dependencies>
 </project>
\ No newline at end of file
diff --git a/common/pom.xml b/common/pom.xml
index 7a7591672..8a8ea4926 100644
--- a/common/pom.xml
+++ b/common/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>viaversion-parent</artifactId>
         <groupId>us.myles</groupId>
-        <version>1.2.0-17w31a-SNAPSHOT</version>
+        <version>1.2.0-1_12_1-pre1</version>
     </parent>
 
     <modelVersion>4.0.0</modelVersion>
diff --git a/common/src/main/java/us/myles/ViaVersion/api/protocol/ProtocolVersion.java b/common/src/main/java/us/myles/ViaVersion/api/protocol/ProtocolVersion.java
index 019c0d1ae..bf01bf0fd 100644
--- a/common/src/main/java/us/myles/ViaVersion/api/protocol/ProtocolVersion.java
+++ b/common/src/main/java/us/myles/ViaVersion/api/protocol/ProtocolVersion.java
@@ -57,7 +57,7 @@ public class ProtocolVersion {
         register(v1_11 = new ProtocolVersion(315, "1.11"));
         register(v1_11_1 = new ProtocolVersion(316, "1.11.1"));
         register(v1_12 = new ProtocolVersion(335, "1.12"));
-        register(v1_12_1 = new ProtocolVersion(336, "17w31a"));
+        register(v1_12_1 = new ProtocolVersion(337, "1.12.1-pre1"));
         register(unknown = new ProtocolVersion(-1, "UNKNOWN"));
     }
 
diff --git a/jar/pom.xml b/jar/pom.xml
index 5367f97c8..b654182d6 100644
--- a/jar/pom.xml
+++ b/jar/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>viaversion-parent</artifactId>
         <groupId>us.myles</groupId>
-        <version>1.2.0-17w31a-SNAPSHOT</version>
+        <version>1.2.0-1_12_1-pre1</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <name>viaversion-jar</name>
diff --git a/pom.xml b/pom.xml
index e95561be2..a4ed508a4 100644
--- a/pom.xml
+++ b/pom.xml
@@ -6,7 +6,7 @@
 
     <groupId>us.myles</groupId>
     <artifactId>viaversion-parent</artifactId>
-    <version>1.2.0-17w31a-SNAPSHOT</version>
+    <version>1.2.0-1_12_1-pre1</version>
     <packaging>pom</packaging>
 
     <name>viaversion-parent</name>
diff --git a/sponge-legacy/pom.xml b/sponge-legacy/pom.xml
index 37f30f200..b74f8f772 100644
--- a/sponge-legacy/pom.xml
+++ b/sponge-legacy/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>viaversion-parent</artifactId>
         <groupId>us.myles</groupId>
-        <version>1.2.0-17w31a-SNAPSHOT</version>
+        <version>1.2.0-1_12_1-pre1</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/sponge/pom.xml b/sponge/pom.xml
index 5949971eb..80741b955 100644
--- a/sponge/pom.xml
+++ b/sponge/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>viaversion-parent</artifactId>
         <groupId>us.myles</groupId>
-        <version>1.2.0-17w31a-SNAPSHOT</version>
+        <version>1.2.0-1_12_1-pre1</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>