diff --git a/pkg/drawing_crdt_bg.wasm b/pkg/drawing_crdt_bg.wasm
index 8ffddf20a889254f8b02cdbe299878e0eb936785..2888f2d143fd698f76bcd1ca8df958fbef434830 100644
Binary files a/pkg/drawing_crdt_bg.wasm and b/pkg/drawing_crdt_bg.wasm differ
diff --git a/src/crdt.rs b/src/crdt.rs
index d4baeb29d2ff657f0a96d40b21f6dfbf817a121b..a88234b3811f85d0554440fdf3b063c56a2e3a30 100644
--- a/src/crdt.rs
+++ b/src/crdt.rs
@@ -89,7 +89,7 @@ impl Serialize for Point {
         tuple.serialize_element(&self.weight)?;
 
         if human_readable {
-            tuple.serialize_element(&format!("#{:06X}", self.colour))?;
+            tuple.serialize_element(&format!("#{:06x}", self.colour))?;
         } else {
             tuple.serialize_element(&self.colour)?;
         }