diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9ddfaf8d4c..2e571ac243 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,10 @@
 ## Modifications since version 2.x
 
+### 3.7.1
+
+ * Fix broken line height under Macintosh (#704).
+
+
 ### 3.7.0
 
  * Make `v-k-cursive` visible in Upright and Oblique; Split variant selectors for `k` and `K` (#700).
diff --git a/README.md b/README.md
index 853a7936ea..39509bc372 100644
--- a/README.md
+++ b/README.md
@@ -194,7 +194,7 @@ Since version 2.0, Iosevka would no longer support building via `makefile`. To i
 		
 	
 	<!-- END Section-Private-Build-Plan-Sample -->
-																																																																																																						
+																																																																																																							
 	
 3. Run `npm run build -- contents::<your plan name>` and the built fonts would be avaliable in `dist/`. Aside from `contents::<plan>`, other options are:
 
diff --git a/changes/3.7.1.md b/changes/3.7.1.md
new file mode 100644
index 0000000000..614c95bf68
--- /dev/null
+++ b/changes/3.7.1.md
@@ -0,0 +1 @@
+ * Fix broken line height under Macintosh (#704).
\ No newline at end of file
diff --git a/font-src/gen/empty-font.js b/font-src/gen/empty-font.js
index 77ce6851a9..bb4e614092 100644
--- a/font-src/gen/empty-font.js
+++ b/font-src/gen/empty-font.js
@@ -42,7 +42,18 @@ module.exports = function () {
 		},
 		OS_2: {
 			achVendID: "BE5N",
-			panose: [2, 0, 5, 9, 0, 0, 0, 0, 0, 0],
+			panose: {
+				bFamilyType: 2,
+				bSerifStyle: 0,
+				bWeight: 5,
+				bProportion: 9,
+				bContrast: 3,
+				bStrokeVariation: 0,
+				bArmStyle: 0,
+				bLetterform: 0,
+				bMidline: 0,
+				bXHeight: 4
+			},
 			fsSelection: 192,
 			fsType: 0,
 			sCapHeight: 0,
diff --git a/font-src/meta/aesthetics.ptl b/font-src/meta/aesthetics.ptl
index 6a398dd6e0..487d682a49 100644
--- a/font-src/meta/aesthetics.ptl
+++ b/font-src/meta/aesthetics.ptl
@@ -205,28 +205,30 @@ export : define [calculateMetrics para] : begin
 
 export : define [setFontMetrics para metrics fm] : begin
 	define [object CAP Descender XH Width] metrics
-	# Metric metadata
-	# Note: we use 1000upm in design, and (1000 * upmsacle)upm in production, to avoid rounding error.
-	define asc : para.leading * CAP / (CAP - Descender)
-	define desc : para.leading * Descender / (CAP - Descender)
-	define descenderPad : fallback para.descenderPad 0
+
+	define leading      : Math.round para.leading
+	define asc          : Math.round : leading * CAP / (CAP - Descender)
+	define desc         : Math.round : leading * Descender / (CAP - Descender)
+	define descenderPad : Math.round : fallback para.descenderPad 0
+	define winMetricAscenderPad  : Math.round : fallback para.winMetricAscenderPad  0
+	define winMetricDescenderPad : Math.round : fallback para.winMetricDescenderPad 0
 
 	set fm.OS_2.xAvgCharWidth     Width
 	set fm.head.unitsPerEm        1000
 	set fm.hhea.ascender          asc
-	set fm.OS_2.usWinAscent       (asc + [fallback para.winMetricAscenderPad 0])
+	set fm.OS_2.usWinAscent       (asc + winMetricAscenderPad)
 	set fm.OS_2.sTypoAscender     asc
 
 	set fm.hhea.descender         (Descender - descenderPad)
-	set fm.OS_2.usWinDescent      ([Math.abs desc] + descenderPad + [fallback para.winMetricDescenderPad 0])
+	set fm.OS_2.usWinDescent      ([Math.abs desc] + descenderPad + winMetricDescenderPad)
 	set fm.OS_2.sTypoDescender    (desc - descenderPad)
 
-	set fm.hhea.lineGap           (para.leading - asc + Descender)
-	set fm.OS_2.sTypoLineGap      (para.leading - asc + desc)
+	set fm.hhea.lineGap           (leading - asc + Descender)
+	set fm.OS_2.sTypoLineGap      (leading - asc + desc)
 
 	set fm.OS_2.sxHeight          XH
 	set fm.OS_2.sCapHeight        CAP
-	set fm.post.italicAngle       (0 - para.slopeAngle)
+	set fm.post.italicAngle       [Math.round (0 - para.slopeAngle)]
 
 
 export : define [compositeBaseAnchors] : begin
diff --git a/font-src/meta/naming.ptl b/font-src/meta/naming.ptl
index 2de403c63c..d218b93c49 100644
--- a/font-src/meta/naming.ptl
+++ b/font-src/meta/naming.ptl
@@ -171,7 +171,7 @@ export : define [assignFontNames para metrics font] : begin
 	# Weight, width and slope
 	set font.OS_2.usWeightClass     para.naming.weight
 	set font.OS_2.usWidthClass      para.naming.width
-	set font.OS_2.panose.2          : 1 + para.naming.weight / 100
+	set font.OS_2.panose.bWeight    : 1 + para.naming.weight / 100
 	set font.OS_2.fsSelection       : object
 		oblique        : not : not isOblique
 		bold           : not : not isBold
@@ -193,8 +193,8 @@ export : define [assignFontNames para metrics font] : begin
 	set font.head.fontRevision : majorVersion + (minorVersion * 10 + patchVersion) / 1000
 
 	if (para.diversityM == 1 && para.diversityF == 1 && para.diversityI == 1 && para.diversityII == 1) : begin
-		set font.OS_2.panose.3          9 # Monospaced
-		set font.post.isFixedPitch      true
+		set font.OS_2.panose.bProportion 9 # Monospaced
+		set font.post.isFixedPitch       true
 	: else : begin
-		set font.OS_2.panose.3          0
-		set font.post.isFixedPitch      false
+		set font.OS_2.panose.bProportion 0
+		set font.post.isFixedPitch       false
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diff --git a/images/languages.png b/images/languages.png
index f19f63c2b1..e415d6c577 100644
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diff --git a/images/ligations.png b/images/ligations.png
index 3b266c0da1..fae2bc524c 100644
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diff --git a/images/matrix.png b/images/matrix.png
index 5d176cb609..4c334ea571 100644
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diff --git a/images/preview-all.png b/images/preview-all.png
index 26d0f2d41a..c67245efc6 100644
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diff --git a/images/stylesets.png b/images/stylesets.png
index 348f3f8a7c..e0f13314d7 100644
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index fce563f1c9..04580f279b 100644
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diff --git a/package.json b/package.json
index 5f3ffd0d3a..4836678450 100644
--- a/package.json
+++ b/package.json
@@ -1,21 +1,22 @@
 {
   "name": "iosevka",
-  "version": "3.7.0",
+  "version": "3.7.1",
   "main": "./font-src/index.js",
   "scripts": {
-    "bump-ver": "node utility/update-package-json-version/index",
     "build": "verda -f verdafile.js",
+    "bump-ver": "node utility/update-package-json-version/index",
     "clean": "verda -f verdafile.js clean",
     "install": "node utility/check-env"
   },
   "dependencies": {
     "@iarna/toml": "^2.2.5",
+    "@unicode/unicode-13.0.0": "^1.0.2",
     "cldr": "^5.7.0",
-    "ejs": "^3.1.3",
+    "ejs": "^3.1.5",
     "fs-extra": "^9.0.1",
     "object-assign": "^4.1.1",
-    "ot-builder": "^0.10.28",
-    "otb-ttc-bundle": "^0.10.28",
+    "ot-builder": "^0.10.31",
+    "otb-ttc-bundle": "^0.10.31",
     "patel": "^0.33.1",
     "semver": "^7.3.2",
     "spiro": "^2.0.0",
@@ -24,14 +25,13 @@
     "ttf2woff": "^2.0.2",
     "ttf2woff2": "^3.0.0",
     "typo-geom": "^0.11.0",
-    "@unicode/unicode-13.0.0": "^1.0.0",
-    "verda": "^1.1.0",
+    "verda": "^1.1.1",
     "which": "^2.0.2"
   },
   "devDependencies": {
-    "eslint": "^7.6.0",
-    "eslint-config-prettier": "^6.11.0",
-    "prettier": "^2.0.5"
+    "eslint": "^7.12.0",
+    "eslint-config-prettier": "^6.14.0",
+    "prettier": "^2.1.2"
   },
   "engines": {
     "node": ">=12.16.0"