diff --git a/README.md b/README.md
index f3f8d7c8..c38d701c 100644
--- a/README.md
+++ b/README.md
@@ -14,7 +14,7 @@
 # Why another protocol translator?
 ViaFabricPlus is intended to replace [multiconnect](https://github.com/Earthcomputer/multiconnect), and it also promises more compactness and stability. ViaFabricPlus can do everything multiconnect could do, but supports more Minecraft versions (listed below) and has more protocol changes implemented.
 ### Supported Server versions
-- Release (1.0.0 - 1.20 [23w14a])
+- Release (1.0.0 - 1.20 [1.20-pre1])
 - Beta (b1.0 - b1.8.1)
 - Alpha (a1.0.15 - a1.2.6)
 - Classic (c0.0.15 - c0.30 including [CPE](https://wiki.vg/Classic_Protocol_Extension))
@@ -28,6 +28,7 @@ ViaFabricPlus is intended to replace [multiconnect](https://github.com/Earthcomp
 ## Known incompatibilities
 - ***[ViaFabric](https://github.com/ViaVersion/ViaFabric)***
 - ***[multiconnect](https://github.com/Earthcomputer/multiconnect)***
+- ***[krypton](https://github.com/astei/krypton)***
 
 ## List of all clientside related fixes
 <details>
diff --git a/gradle.properties b/gradle.properties
index e9aac868..5fea652e 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -19,8 +19,8 @@ raknet_transport_version=1.0.0.CR1-SNAPSHOT
 classic4j_version=1.2.0
 
 # viaversion (and required) libs
-viaversion_version=4.7.0-23w18a-SNAPSHOT
-viabackwards_version=4.7.0-23w18a-SNAPSHOT
+viaversion_version=4.7.0-1.20-pre1-SNAPSHOT
+viabackwards_version=4.7.0-1.20-pre1-SNAPSHOT
 snake_yml_version=2.0
 
 # raphimc libs
diff --git a/src/main/java/de/florianmichael/viafabricplus/injection/mixin/fixes/viaversion/MixinProtocolVersion.java b/src/main/java/de/florianmichael/viafabricplus/injection/mixin/fixes/viaversion/MixinProtocolVersion.java
index 920395f5..9f14ccb8 100644
--- a/src/main/java/de/florianmichael/viafabricplus/injection/mixin/fixes/viaversion/MixinProtocolVersion.java
+++ b/src/main/java/de/florianmichael/viafabricplus/injection/mixin/fixes/viaversion/MixinProtocolVersion.java
@@ -45,7 +45,7 @@ public abstract class MixinProtocolVersion {
         viafabricplus_remaps.put("1.16.4/5", new Pair<>("1.16.4-1.16.5", null));
         viafabricplus_remaps.put("1.18/1.18.1", new Pair<>("1.18-1.18.1", null));
         viafabricplus_remaps.put("1.19.1/2", new Pair<>("1.19.1-1.19.2", null));
-        viafabricplus_remaps.put("1.20", new Pair<>("23w18a", null));
+        viafabricplus_remaps.put("1.20", new Pair<>("1.20-pre1", null));
     }
 
     @Redirect(method = "<clinit>", at = @At(value = "INVOKE", target = "Lcom/viaversion/viaversion/api/protocol/version/ProtocolVersion;register(ILjava/lang/String;)Lcom/viaversion/viaversion/api/protocol/version/ProtocolVersion;"))
diff --git a/src/main/java/de/florianmichael/viafabricplus/mappings/PackFormatsMappings.java b/src/main/java/de/florianmichael/viafabricplus/mappings/PackFormatsMappings.java
index edf4952c..e2e2cede 100644
--- a/src/main/java/de/florianmichael/viafabricplus/mappings/PackFormatsMappings.java
+++ b/src/main/java/de/florianmichael/viafabricplus/mappings/PackFormatsMappings.java
@@ -32,7 +32,7 @@ public class PackFormatsMappings {
     private final static Map<Integer, GameVersion> protocolMap = new HashMap<>();
 
     public static void load() {
-        registerVersion(ProtocolVersion.v1_20, 15, "23w18a");
+        registerVersion(ProtocolVersion.v1_20, 15, "1.20-pre1");
         registerVersion(ProtocolVersion.v1_19_4, 13, "1.19.4");
         registerVersion(ProtocolVersion.v1_19_3, 12, "1.19.3");
         registerVersion(ProtocolVersion.v1_19_1, 9, "1.19.2");