diff --git a/package.json b/package.json
index 5095e7993..5102f9b1b 100644
--- a/package.json
+++ b/package.json
@@ -35,7 +35,7 @@
     "@types/rimraf": "^3.0.2",
     "@types/sinon": "^10.0.0",
     "@types/uglify-js": "^3.17.0",
-    "c8": "^7.0.0",
+    "c8": "^8.0.0",
     "codecov": "^3.1.0",
     "execa": "^5.0.0",
     "gapic-tools": "^0.1.7",
diff --git a/samples/package.json b/samples/package.json
index 1f790787a..7da11ffcd 100644
--- a/samples/package.json
+++ b/samples/package.json
@@ -17,7 +17,7 @@
     "google-gax": "^4.0.0"
   },
   "devDependencies": {
-    "c8": "^7.0.0",
+    "c8": "^8.0.0",
     "mocha": "^9.0.0"
   }
 }
diff --git a/tools/package.json b/tools/package.json
index 6fb2517a0..c53b23cc6 100644
--- a/tools/package.json
+++ b/tools/package.json
@@ -40,7 +40,7 @@
     "@types/mocha": "^9.0.0",
     "@types/ncp": "^2.0.1",
     "@types/uglify-js": "^3.17.0",
-    "c8": "^7.0.0",
+    "c8": "^8.0.0",
     "gts": "^3.1.1",
     "mocha": "^9.0.0",
     "ncp": "^2.0.0",