diff --git a/gradle.properties b/gradle.properties
index 52c4a4b..5190895 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -8,7 +8,7 @@ yarn_mappings=1.21.8+build.1
 loader_version=0.16.14
 
 # Mod Properties
-mod_version=0.1.2
+mod_version=0.1.3
 maven_group=fr.sukikui.playercoordsapi
 archives_base_name=playercoordsapi
 
diff --git a/src/client/java/fr/sukikui/playercoordsapi/PlayerCoordsAPIClient.java b/src/client/java/fr/sukikui/playercoordsapi/PlayerCoordsAPIClient.java
index 7bec943..413d6cf 100644
--- a/src/client/java/fr/sukikui/playercoordsapi/PlayerCoordsAPIClient.java
+++ b/src/client/java/fr/sukikui/playercoordsapi/PlayerCoordsAPIClient.java
@@ -12,6 +12,7 @@
 import java.io.IOException;
 import java.io.OutputStream;
 import java.net.InetSocketAddress;
+import java.util.Locale;
 import java.util.concurrent.Executors;
 
 public class PlayerCoordsAPIClient implements ClientModInitializer {
@@ -113,8 +114,8 @@ private void handleCoordsRequest(HttpExchange exchange) throws IOException {
             String uuid = player.getUuid().toString();
             String username = player.getName().getString();
 
-            // Format as JSON
-            responseText = String.format(
+            // Format as JSON using US locale to ensure dots instead of commas
+            responseText = String.format(Locale.US,
                     "{\"x\": %.2f, \"y\": %.2f, \"z\": %.2f, \"world\": \"%s\", \"biome\": \"%s\", \"uuid\": \"%s\", \"username\": \"%s\"}",
                     x, y, z, world, biome, uuid, username
             );