diff --git a/data/fonts/fonts.xml b/data/fonts/fonts.xml
index 04bf804..21531ab 100644
--- a/data/fonts/fonts.xml
+++ b/data/fonts/fonts.xml
@@ -99,6 +99,46 @@
         <font weight="400" style="normal">CarroisGothicSC-Regular.ttf</font>
     </family>
 
+    <family name="arbutus-slab">
+        <font weight="400" style="normal">ArbutusSlab-Regular.ttf</font>
+    </family>
+
+    <family name="arvo">
+        <font weight="400" style="normal">Arvo-Regular.ttf</font>
+        <font weight="400" style="italic">Arvo-Italic.ttf</font>
+        <font weight="700" style="normal">Arvo-Bold.ttf</font>
+        <font weight="700" style="italic">Arvo-BoldItalic.ttf</font>
+    </family>
+    <alias name="arvo-bold" to="arvo" weight="700" />
+
+    <family name="lato">
+        <font weight="400" style="normal">Lato-Regular.ttf</font>
+        <font weight="400" style="italic">Lato-Italic.ttf</font>
+        <font weight="700" style="normal">Lato-Bold.ttf</font>
+        <font weight="700" style="italic">Lato-BoldItalic.ttf</font>
+    </family>
+    <alias name="lato-bold" to="lato" weight="700" />
+
+    <family name="rubik">
+        <font weight="400" style="normal">Rubik-Regular.ttf</font>
+        <font weight="400" style="italic">Rubik-Italic.ttf</font>
+        <font weight="500" style="normal">Rubik-Medium.ttf</font>
+        <font weight="500" style="italic">Rubik-MediumItalic.ttf</font>
+        <font weight="700" style="normal">Rubik-Bold.ttf</font>
+        <font weight="700" style="italic">Rubik-BoldItalic.ttf</font>
+    </family>
+    <alias name="rubik-medium" to="rubik" weight="500" />
+
+    <family name="source-sans-pro">
+        <font weight="400" style="normal">SourceSansPro-Regular.ttf</font>
+        <font weight="400" style="italic">SourceSansPro-Italic.ttf</font>
+        <font weight="600" style="normal">SourceSansPro-SemiBold.ttf</font>
+        <font weight="600" style="italic">SourceSansPro-SemiBoldItalic.ttf</font>
+        <font weight="700" style="normal">SourceSansPro-Bold.ttf</font>
+        <font weight="700" style="italic">SourceSansPro-BoldItalic.ttf</font>
+    </family>
+    <alias name="source-sans-pro-semi-bold" to="source-sans-pro" weight="600" />
+
     <!-- fallback fonts -->
     <family lang="und-Arab" variant="elegant">
         <font weight="400" style="normal">NotoNaskhArabic-Regular.ttf</font>
diff --git a/packages/overlays/FontArbutusSourceOverlay/res/values/config.xml b/packages/overlays/FontArbutusSourceOverlay/res/values/config.xml
index 165aab2..a6aa64c 100644
--- a/packages/overlays/FontArbutusSourceOverlay/res/values/config.xml
+++ b/packages/overlays/FontArbutusSourceOverlay/res/values/config.xml
@@ -19,7 +19,7 @@
      <!-- Name of a font family to use for body text. -->
     <string name="config_bodyFontFamily" translatable="false">source-sans-pro</string>
     <!-- Name of a font family to use for medium body text. -->
-    <string name="config_bodyFontFamilyMedium" translatable="false">source-sans-pro-medium</string>
+    <string name="config_bodyFontFamilyMedium" translatable="false">source-sans-pro-semi-bold</string>
     <!-- Name of a font family to use for headlines. If empty, falls back to platform default -->
     <string name="config_headlineFontFamily" translatable="false">arbutus-slab</string>
     <!-- Name of the font family used for system surfaces where the font should use medium weight -->
diff --git a/packages/overlays/FontArvoLatoOverlay/res/values/config.xml b/packages/overlays/FontArvoLatoOverlay/res/values/config.xml
index 229c578..4e70d72 100644
--- a/packages/overlays/FontArvoLatoOverlay/res/values/config.xml
+++ b/packages/overlays/FontArvoLatoOverlay/res/values/config.xml
@@ -19,10 +19,10 @@
      <!-- Name of a font family to use for body text. -->
     <string name="config_bodyFontFamily" translatable="false">lato</string>
     <!-- Name of a font family to use for medium body text. -->
-    <string name="config_bodyFontFamilyMedium" translatable="false">lato-medium</string>
+    <string name="config_bodyFontFamilyMedium" translatable="false">lato-bold</string>
     <!-- Name of a font family to use for headlines. If empty, falls back to platform default -->
     <string name="config_headlineFontFamily" translatable="false">arvo</string>
     <!-- Name of the font family used for system surfaces where the font should use medium weight -->
-    <string name="config_headlineFontFamilyMedium" translatable="false">arvo-medium</string>
+    <string name="config_headlineFontFamilyMedium" translatable="false">arvo-bold</string>
 </resources>