diff --git a/pkgs/data/fonts/iosevka/comfy.nix b/pkgs/data/fonts/iosevka/comfy.nix
index fb788b287635..63dfca58d544 100644
--- a/pkgs/data/fonts/iosevka/comfy.nix
+++ b/pkgs/data/fonts/iosevka/comfy.nix
@@ -4,21 +4,21 @@ let
   sets = [
     # Family                  | Shapes | Spacing | Style      | Ligatures |
     # ------------------------+--------+---------+------------+-----------|
-    "comfy"                   # Sans   | Compact | Monospaced | Yes       |
-    "comfy-fixed"             # Sans   | Compact | Monospaced | No        |
-    "comfy-duo"               # Sans   | Compact | Duospaced  | Yes       |
+    "comfy" #                 | Sans   | Compact | Monospaced | Yes       |
+    "comfy-fixed" #           | Sans   | Compact | Monospaced | No        |
+    "comfy-duo" #             | Sans   | Compact | Duospaced  | Yes       |
     # ------------------------+--------+---------+------------+-----------|
-    "comfy-motion"            # Slab   | Compact | Monospaced | Yes       |
-    "comfy-motion-fixed"      # Slab   | Compact | Monospaced | No        |
-    "comfy-motion-duo"        # Slab   | Compact | Duospaced  | Yes       |
+    "comfy-motion" #          | Slab   | Compact | Monospaced | Yes       |
+    "comfy-motion-fixed" #    | Slab   | Compact | Monospaced | No        |
+    "comfy-motion-duo" #      | Slab   | Compact | Duospaced  | Yes       |
     # ------------------------+--------+---------+------------+-----------|
-    "comfy-wide"              # Sans   | Wide    | Monospaced | Yes       |
-    "comfy-wide-fixed"        # Sans   | Wide    | Monospaced | No        |
-    "comfy-wide-duo"          # Sans   | Wide    | Duospaced  | Yes       |
+    "comfy-wide" #            | Sans   | Wide    | Monospaced | Yes       |
+    "comfy-wide-fixed" #      | Sans   | Wide    | Monospaced | No        |
+    "comfy-wide-duo" #        | Sans   | Wide    | Duospaced  | Yes       |
     # ------------------------+--------+---------+------------+-----------|
-    "comfy-wide-motion"       # Slab   | Wide    | Monospaced | Yes       |
+    "comfy-wide-motion" #     | Slab   | Wide    | Monospaced | Yes       |
     "comfy-wide-motion-fixed" # Slab   | Wide    | Monospaced | No        |
-    "comfy-wide-motion-duo"   # Slab   | Wide    | Duospaced  | Yes       |
+    "comfy-wide-motion-duo" # | Slab   | Wide    | Duospaced  | Yes       |
   ];
   version = "1.4.0";
   src = fetchFromGitHub {
@@ -34,6 +34,7 @@ let
       inherit set privateBuildPlan;
       buildNpmPackage = args: superBuildNpmPackage
         (args // {
+          pname = "iosevka-${set}";
           inherit version;
 
           src = fetchFromGitHub {
@@ -45,6 +46,14 @@ let
 
           npmDepsHash = "sha256-c+ltdh5e3+idclYfqp0Xh9IUwoj7XYP1uzJG6+a5gFU=";
 
+          installPhase = ''
+            runHook preInstall
+            fontdir="$out/share/fonts/truetype"
+            install -d "$fontdir"
+            install "dist/$pname/ttf"/* "$fontdir"
+            runHook postInstall
+          '';
+
           meta = with lib; {
             inherit (src.meta) homepage;
             description = ''
diff --git a/pkgs/data/fonts/iosevka/default.nix b/pkgs/data/fonts/iosevka/default.nix
index 6993a1641de5..c379fe7ebb3b 100644
--- a/pkgs/data/fonts/iosevka/default.nix
+++ b/pkgs/data/fonts/iosevka/default.nix
@@ -54,17 +54,17 @@ assert (privateBuildPlan != null) -> set != null;
 assert (extraParameters != null) -> set != null;
 
 buildNpmPackage rec {
-  pname = if set != null then "iosevka-${set}" else "iosevka";
-  version = "27.3.5";
+  pname = "Iosevka${toString set}";
+  version = "28.1.0";
 
   src = fetchFromGitHub {
     owner = "be5invis";
     repo = "iosevka";
     rev = "v${version}";
-    hash = "sha256-dqXr/MVOuEmAMueaRWsnzY9MabhnyBRtLR9IDVLN79I=";
+    hash = "sha256-cYnGJ7Z0PDRZtC/vz8hX/+mqk7iVkajFTfNGgRW+edQ=";
   };
 
-  npmDepsHash = "sha256-bux8aFBP1Pi5pAQY1jkNTqD2Ny2j+QQs+QRaXWJj6xg=";
+  npmDepsHash = "sha256-bzQ7dc7UiC++0DxnQHusu6Ym7rd7GgeA6bGSnnla1nk=";
 
   nativeBuildInputs = [
     remarshal
@@ -88,23 +88,23 @@ buildNpmPackage rec {
     ) [ "buildPlan" ];
 
   configurePhase = ''
-    runHook preConfigure
-    ${lib.optionalString (builtins.isAttrs privateBuildPlan) ''
-      remarshal -i "$buildPlanPath" -o private-build-plans.toml -if json -of toml
-    ''}
-    ${lib.optionalString (builtins.isString privateBuildPlan
-      && (!lib.hasPrefix builtins.storeDir privateBuildPlan)) ''
-        cp "$buildPlanPath" private-build-plans.toml
+      runHook preConfigure
+      ${lib.optionalString (builtins.isAttrs privateBuildPlan) ''
+        remarshal -i "$buildPlanPath" -o private-build-plans.toml -if json -of toml
       ''}
-    ${lib.optionalString (builtins.isString privateBuildPlan
-      && (lib.hasPrefix builtins.storeDir privateBuildPlan)) ''
-        cp "$buildPlan" private-build-plans.toml
+      ${lib.optionalString (builtins.isString privateBuildPlan
+    && (!lib.hasPrefix builtins.storeDir privateBuildPlan)) ''
+          cp "$buildPlanPath" private-build-plans.toml
+        ''}
+      ${lib.optionalString (builtins.isString privateBuildPlan
+    && (lib.hasPrefix builtins.storeDir privateBuildPlan)) ''
+          cp "$buildPlan" private-build-plans.toml
+        ''}
+      ${lib.optionalString (extraParameters != null) ''
+        echo -e "\n" >> params/parameters.toml
+        cat "$extraParametersPath" >> params/parameters.toml
       ''}
-    ${lib.optionalString (extraParameters != null) ''
-      echo -e "\n" >> params/parameters.toml
-      cat "$extraParametersPath" >> params/parameters.toml
-    ''}
-    runHook postConfigure
+      runHook postConfigure
   '';
 
   buildPhase = ''
@@ -118,7 +118,7 @@ buildNpmPackage rec {
     runHook preInstall
     fontdir="$out/share/fonts/truetype"
     install -d "$fontdir"
-    install "dist/$pname/ttf"/* "$fontdir"
+    install "dist/$pname/TTF"/* "$fontdir"
     runHook postInstall
   '';