diff --git a/.changeset/red-fans-wait.md b/.changeset/red-fans-wait.md
new file mode 100644
index 0000000000..908f4671fb
--- /dev/null
+++ b/.changeset/red-fans-wait.md
@@ -0,0 +1,5 @@
+---
+"stylelint": patch
+---
+
+Fixed: `report()` for `index`/`endIndex` zero values
diff --git a/lib/utils/report.cjs b/lib/utils/report.cjs
index 01c14f6786..b11881cd95 100644
--- a/lib/utils/report.cjs
+++ b/lib/utils/report.cjs
@@ -106,13 +106,13 @@ function report(problem) {
 
 	if (problem.start) {
 		warningProperties.start = problem.start;
-	} else if (index) {
+	} else if (typeof index === 'number') {
 		warningProperties.index = index;
 	}
 
 	if (problem.end) {
 		warningProperties.end = problem.end;
-	} else if (endIndex) {
+	} else if (typeof endIndex === 'number') {
 		warningProperties.endIndex = endIndex;
 	}
 
diff --git a/lib/utils/report.mjs b/lib/utils/report.mjs
index 3555b42e58..899855034a 100644
--- a/lib/utils/report.mjs
+++ b/lib/utils/report.mjs
@@ -102,13 +102,13 @@ export default function report(problem) {
 
 	if (problem.start) {
 		warningProperties.start = problem.start;
-	} else if (index) {
+	} else if (typeof index === 'number') {
 		warningProperties.index = index;
 	}
 
 	if (problem.end) {
 		warningProperties.end = problem.end;
-	} else if (endIndex) {
+	} else if (typeof endIndex === 'number') {
 		warningProperties.endIndex = endIndex;
 	}
 
diff --git a/package-lock.json b/package-lock.json
index 61e7965df6..364ede8d91 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -36,7 +36,7 @@
         "micromatch": "^4.0.5",
         "normalize-path": "^3.0.0",
         "picocolors": "^1.0.0",
-        "postcss": "^8.4.35",
+        "postcss": "^8.4.38",
         "postcss-resolve-nested-selector": "^0.1.1",
         "postcss-safe-parser": "^7.0.0",
         "postcss-selector-parser": "^6.0.16",
@@ -14786,9 +14786,9 @@
       }
     },
     "node_modules/postcss": {
-      "version": "8.4.35",
-      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.4.35.tgz",
-      "integrity": "sha512-u5U8qYpBCpN13BsiEB0CbR1Hhh4Gc0zLFuedrHJKMctHCHAGrMdG0PRM/KErzAL3CU6/eckEtmHNB3x6e3c0vA==",
+      "version": "8.4.38",
+      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.4.38.tgz",
+      "integrity": "sha512-Wglpdk03BSfXkHoQa3b/oulrotAkwrlLDRSOb9D0bN86FdRyE9lppSp33aHNPgBa0JKCoB+drFLZkQoRRYae5A==",
       "funding": [
         {
           "type": "opencollective",
@@ -14806,7 +14806,7 @@
       "dependencies": {
         "nanoid": "^3.3.7",
         "picocolors": "^1.0.0",
-        "source-map-js": "^1.0.2"
+        "source-map-js": "^1.2.0"
       },
       "engines": {
         "node": "^10 || ^12 || >=14"
@@ -17832,9 +17832,9 @@
       }
     },
     "node_modules/source-map-js": {
-      "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/source-map-js/-/source-map-js-1.0.2.tgz",
-      "integrity": "sha512-R0XvVJ9WusLiqTCEiGCmICCMplcCkIwwR11mOSD9CR5u+IXYdiseeEuXCVAjS54zqwkLcPNnmU4OeJ6tUrWhDw==",
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/source-map-js/-/source-map-js-1.2.0.tgz",
+      "integrity": "sha512-itJW8lvSA0TXEphiRoawsCksnlf8SyvmFzIhltqAHluXd88pkCd+cXJVHTDwdCr0IzwptSm035IHQktUu1QUMg==",
       "engines": {
         "node": ">=0.10.0"
       }
diff --git a/package.json b/package.json
index f03848af88..dabeb8c407 100644
--- a/package.json
+++ b/package.json
@@ -188,7 +188,7 @@
     "micromatch": "^4.0.5",
     "normalize-path": "^3.0.0",
     "picocolors": "^1.0.0",
-    "postcss": "^8.4.35",
+    "postcss": "^8.4.38",
     "postcss-resolve-nested-selector": "^0.1.1",
     "postcss-safe-parser": "^7.0.0",
     "postcss-selector-parser": "^6.0.16",