diff --git a/package-lock.json b/package-lock.json
index d2f671c..6fe7f73 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -9,7 +9,7 @@
       "version": "7.1.0",
       "license": "MIT",
       "dependencies": {
-        "@bramus/specificity": "^2.4.1",
+        "@bramus/specificity": "github:bramus/specificity#af31c7ec981e07c99b3732d60792d65a07033d99",
         "css-tree": "^3.1.0"
       },
       "devDependencies": {
@@ -137,8 +137,8 @@
     },
     "node_modules/@bramus/specificity": {
       "version": "2.4.1",
-      "resolved": "https://registry.npmjs.org/@bramus/specificity/-/specificity-2.4.1.tgz",
-      "integrity": "sha512-cI7AmySy3FGIC59YRusPWnscNr2/M60HKTvE2h63EMGZPdB1LLT2G7OE3XB8tajjX7hVBR0YXUVvTEr4JHtLsg==",
+      "resolved": "git+ssh://git@github.com/bramus/specificity.git#af31c7ec981e07c99b3732d60792d65a07033d99",
+      "integrity": "sha512-8d0zlkt+rTbtO7qPT+GzK6KnZlkgly91yrUtOTarv37kYB0hi80xceEys283AP2h94cBUCxbK/nKCxbH2iCXhQ==",
       "license": "MIT",
       "dependencies": {
         "css-tree": "^3.0.0"
@@ -3439,9 +3439,9 @@
       "dev": true
     },
     "@bramus/specificity": {
-      "version": "2.4.1",
-      "resolved": "https://registry.npmjs.org/@bramus/specificity/-/specificity-2.4.1.tgz",
-      "integrity": "sha512-cI7AmySy3FGIC59YRusPWnscNr2/M60HKTvE2h63EMGZPdB1LLT2G7OE3XB8tajjX7hVBR0YXUVvTEr4JHtLsg==",
+      "version": "git+ssh://git@github.com/bramus/specificity.git#af31c7ec981e07c99b3732d60792d65a07033d99",
+      "integrity": "sha512-8d0zlkt+rTbtO7qPT+GzK6KnZlkgly91yrUtOTarv37kYB0hi80xceEys283AP2h94cBUCxbK/nKCxbH2iCXhQ==",
+      "from": "@bramus/specificity@github:bramus/specificity#af31c7ec981e07c99b3732d60792d65a07033d99",
       "requires": {
         "css-tree": "^3.0.0"
       }
diff --git a/package.json b/package.json
index 649b67e..681c981 100644
--- a/package.json
+++ b/package.json
@@ -45,7 +45,7 @@
     "code"
   ],
   "dependencies": {
-    "@bramus/specificity": "^2.4.1",
+    "@bramus/specificity": "github:bramus/specificity#af31c7ec981e07c99b3732d60792d65a07033d99",
     "css-tree": "^3.1.0"
   },
   "devDependencies": {
diff --git a/src/index.js b/src/index.js
index 05a234d..23b230b 100644
--- a/src/index.js
+++ b/src/index.js
@@ -1,6 +1,6 @@
 import parse from 'css-tree/parser'
 import walk from 'css-tree/walker'
-import { calculateForAST } from '@bramus/specificity/core'
+import { calculateForAST } from '../node_modules/@bramus/specificity/src/core/calculate.js'
 import { isSupportsBrowserhack, isMediaBrowserhack } from './atrules/atrules.js'
 import { getCombinators, getComplexity, isAccessibility, isPrefixed, hasPseudoClass } from './selectors/utils.js'
 import { colorFunctions, colorKeywords, namedColors, systemColors } from './values/colors.js'
diff --git a/src/selectors/pseudos.test.js b/src/selectors/pseudos.test.js
index a3024af..cd99bf2 100644
--- a/src/selectors/pseudos.test.js
+++ b/src/selectors/pseudos.test.js
@@ -56,4 +56,16 @@ test('logs the whole parent selector when using locations', () => {
 	assert.equal(actual, expected)
 })
 
+test('does not crash on @bramus/specificity edge cases', () => {
+	assert.not.throws(() => {
+		analyze(`
+			a:nth-child() {}
+
+			html::view-transition-new() {
+				animation-name: -ua-view-transition-fade-in;
+			}
+		`)
+	})
+})
+
 test.run()