diff --git a/img/marpstyle-brand-new.svg b/img/marpstyle-brand-new.svg
index 74992c8..2e1731b 100644
--- a/img/marpstyle-brand-new.svg
+++ b/img/marpstyle-brand-new.svg
@@ -1,11 +1,11 @@
+ style="stroke-width:0.6" />
+ style="stroke-width:0.6" />
+ style="stroke-width:0.6" />
+ style="stroke-width:0.6" />
diff --git a/img/marpstyle-ready.svg b/img/marpstyle-ready.svg
index b9ae1ce..3fc2867 100644
--- a/img/marpstyle-ready.svg
+++ b/img/marpstyle-ready.svg
@@ -1,8 +1,8 @@
+ style="stroke-width:0.6" />
+ style="stroke-width:0.6" />
+ style="stroke-width:0.6" />
+ style="stroke-width:0.6" />