diff --git a/packages/session-ui/src/components/markdown.css b/packages/session-ui/src/components/markdown.css
index cc4d1157865..b237722c71f 100644
--- a/packages/session-ui/src/components/markdown.css
+++ b/packages/session-ui/src/components/markdown.css
@@ -81,7 +81,7 @@
   strong,
   b {
     color: var(--v2-text-text-base);
-    font-weight: var(--font-weight-medium);
+    font-weight: var(--font-weight-bold);
   }
 
   /* Paragraphs */
diff --git a/packages/ui/src/styles/theme.css b/packages/ui/src/styles/theme.css
index f37f41b9682..4554666bef3 100644
--- a/packages/ui/src/styles/theme.css
+++ b/packages/ui/src/styles/theme.css
@@ -11,6 +11,7 @@
   --font-size-x-large: 20px;
   --font-weight-regular: 400;
   --font-weight-medium: 500;
+  --font-weight-bold: 700;
   --line-height-normal: 130%;
   --line-height-large: 150%;
   --line-height-x-large: 180%;