diff --git a/React/Views/RCTFont.mm b/React/Views/RCTFont.mm
index c75a2b96702fba..20e86f0f9dfff0 100644
--- a/React/Views/RCTFont.mm
+++ b/React/Views/RCTFont.mm
@@ -50,6 +50,7 @@ static RCTFontWeight weightOfFont(UIFont *font)
       @"regular",
       @"medium",
       @"semibold",
+      @"demibold",
       @"bold",
       @"heavy",
       @"black"
@@ -62,6 +63,7 @@ static RCTFontWeight weightOfFont(UIFont *font)
       @(UIFontWeightRegular),
       @(UIFontWeightMedium),
       @(UIFontWeightSemibold),
+      @(UIFontWeightSemibold),
       @(UIFontWeightBold),
       @(UIFontWeightHeavy),
       @(UIFontWeightBlack)