diff --git a/modules/primer-markdown/lib/headings.scss b/modules/primer-markdown/lib/headings.scss
index e638ee45..49a03457 100644
--- a/modules/primer-markdown/lib/headings.scss
+++ b/modules/primer-markdown/lib/headings.scss
@@ -9,7 +9,7 @@
   h4,
   h5,
   h6 {
-    margin-top: ($spacer-3 * 1.5);
+    margin-top: $spacer-4;
     margin-bottom: $spacer-3;
     font-weight: $font-weight-bold;
     line-height: $lh-condensed;
diff --git a/modules/primer-markdown/lib/markdown-body.scss b/modules/primer-markdown/lib/markdown-body.scss
index 567cea8c..ea7620c9 100644
--- a/modules/primer-markdown/lib/markdown-body.scss
+++ b/modules/primer-markdown/lib/markdown-body.scss
@@ -71,7 +71,7 @@
   hr {
     height: 0.25em;
     padding: 0;
-    margin: ($spacer-3 * 1.5) 0;
+    margin: $spacer-4 0;
     background-color: $gray-200;
     border: 0;
   }