diff --git a/lib/EpdFont/scripts/sd-fonts.yaml b/lib/EpdFont/scripts/sd-fonts.yaml
index 18da5104..ee5365a1 100644
--- a/lib/EpdFont/scripts/sd-fonts.yaml
+++ b/lib/EpdFont/scripts/sd-fonts.yaml
@@ -118,9 +118,9 @@ families:
     intervals: builtin,latin-cyrillic,musical-symbols
     sizes: [10, 12, 14, 16, 18]
     styles:
-      regular:    {url: "https://raw.githubusercontent.com/google/fonts/main/ofl/bitter/Bitter%5Bwght%5D.ttf", variable: {wght: 400}}
+      regular:    {url: "https://raw.githubusercontent.com/google/fonts/main/ofl/bitter/Bitter%5Bwght%5D.ttf", variable: {wght: 500}}
       bold:       {url: "https://raw.githubusercontent.com/google/fonts/main/ofl/bitter/Bitter%5Bwght%5D.ttf", variable: {wght: 700}}
-      italic:     {url: "https://raw.githubusercontent.com/google/fonts/main/ofl/bitter/Bitter-Italic%5Bwght%5D.ttf", variable: {wght: 400}}
+      italic:     {url: "https://raw.githubusercontent.com/google/fonts/main/ofl/bitter/Bitter-Italic%5Bwght%5D.ttf", variable: {wght: 500}}
       bolditalic: {url: "https://raw.githubusercontent.com/google/fonts/main/ofl/bitter/Bitter-Italic%5Bwght%5D.ttf", variable: {wght: 700}}
 
   - name: Readerly