diff --git a/.config/kitty/kitty.conf b/.config/kitty/kitty.conf
index 2215e55..8a12a48 100644
--- a/.config/kitty/kitty.conf
+++ b/.config/kitty/kitty.conf
@@ -84,13 +84,15 @@ disable_ligatures never
 #:     map alt+2 disable_ligatures_in all never
 #:     map alt+3 disable_ligatures_in tab cursor
 
-font_features FiraCode-Bold +zero +ss07
-font_features FiraCode-Light +zero +ss07
-font_features FiraCode-Medium +zero +ss07
-font_features FiraCode-Regular +zero +ss07
-font_features FiraCode-Retina +zero +ss07
+# cv29: {}, cv31 ()
+font_features FiraCode-Bold +zero +ss07 +cv31
+font_features FiraCode-Light +zero +ss07 +cv31
+font_features FiraCode-Medium +zero +ss07 +cv31
+font_features FiraCode-Regular +zero +ss07 +cv31
+font_features FiraCode-Retina +zero +ss07 +cv31
 font_features JetBrainsMono-Italic +liga +calt +ss04 +ss05
 font_features JetBrainsMono-BoldItalic +liga +calt +ss04 +ss05
+font_features JetBrainsMono-MediumItalic +liga +calt +ss04 +ss05
 
 #: Choose exactly which OpenType features to enable or disable. This
 #: is useful as some fonts might have features worthwhile in a