diff --git a/.github/labels.yml b/.github/labels.yml
index 5205ca4..1ac97cc 100644
--- a/.github/labels.yml
+++ b/.github/labels.yml
@@ -119,3 +119,8 @@
 - name: "E:5.2 Contracts migrations"
   description: See https://github.com/cowprotocol/pm/issues/32 for details
   color: bfd4f2
+
+# [Milestone] Faster Execution Speed
+- name: "E:6.1 One auction per block"
+  description: See https://github.com/cowprotocol/pm/issues/35 for details
+  color: f9d0c4