diff --git a/build-logic/src/main/groovy/vaf.base-conventions.gradle b/build-logic/src/main/groovy/vaf.base-conventions.gradle
index 139cf57..1deb86f 100644
--- a/build-logic/src/main/groovy/vaf.base-conventions.gradle
+++ b/build-logic/src/main/groovy/vaf.base-conventions.gradle
@@ -22,8 +22,8 @@ base {
 }
 
 dependencies {
-    compileOnly "com.viaversion:viaversion-common:5.0.4"
-    compileOnly "com.viaversion:viabackwards-common:5.0.4"
+    compileOnly "com.viaversion:viaversion-common:5.1.0"
+    compileOnly "com.viaversion:viabackwards-common:5.1.0"
 }
 
 publishing {
diff --git a/common/src/main/java/net/raphimc/viaaprilfools/api/VAFServerVersionProvider.java b/common/src/main/java/net/raphimc/viaaprilfools/api/VAFServerVersionProvider.java
index 318a8d4..26897ee 100644
--- a/common/src/main/java/net/raphimc/viaaprilfools/api/VAFServerVersionProvider.java
+++ b/common/src/main/java/net/raphimc/viaaprilfools/api/VAFServerVersionProvider.java
@@ -33,7 +33,7 @@ public VAFServerVersionProvider(final VersionProvider delegate) {
     @Override
     public ProtocolVersion getClientProtocol(UserConnection connection) {
         final ProtocolVersion version = connection.getProtocolInfo().protocolVersion();
-        if (version.getVersionType() == VersionType.SPECIAL) {
+        if (!version.isKnown()) {
             return ProtocolVersion.getProtocol(VersionType.SPECIAL, version.getOriginalVersion());
         } else {
             return delegate.getClientProtocol(connection);
diff --git a/fabric/src/main/resources/fabric.mod.json b/fabric/src/main/resources/fabric.mod.json
index 53953b7..df22a60 100644
--- a/fabric/src/main/resources/fabric.mod.json
+++ b/fabric/src/main/resources/fabric.mod.json
@@ -23,7 +23,7 @@
   },
   "depends": {
     "viafabric": ">=0.4.14",
-    "viabackwards": ">=5.0.4-SNAPSHOT"
+    "viabackwards": ">=5.1.0"
   },
   "custom": {
     "modmenu:api": true,