diff --git a/.nycrc.json b/.nycrc.json
index ff04cf2..17e0ac2 100644
--- a/.nycrc.json
+++ b/.nycrc.json
@@ -3,7 +3,8 @@
     "all": true,
     "exclude": [
         "**/lib/**/{fixture,*.spec.{js,mjs}}",
-        ".*",
+        "**/.*",
+        "**/*.ts",
         "**/packages/supertape/bin/*.mjs",
         "**/*.config.*"
     ],
diff --git a/package.json b/package.json
index cb7d2dc..64b2691 100644
--- a/package.json
+++ b/package.json
@@ -32,7 +32,7 @@
   },
   "devDependencies": {
     "@putout/eslint-flat": "^2.0.0",
-    "c8": "^9.0.0",
+    "c8": "^10.1.2",
     "check-dts": "^0.8.0",
     "eslint": "^9.1.1",
     "eslint-plugin-putout": "^22.0.0",
@@ -47,6 +47,8 @@
   "engines": {
     "node": ">=18"
   },
-  "workspaces": ["packages/*"],
+  "workspaces": [
+    "packages/*"
+  ],
   "dependencies": {}
 }
diff --git a/packages/engine-loader/package.json b/packages/engine-loader/package.json
index 041d8b2..33e0027 100644
--- a/packages/engine-loader/package.json
+++ b/packages/engine-loader/package.json
@@ -34,7 +34,7 @@
   ],
   "devDependencies": {
     "@supertape/operator-stub": "*",
-    "c8": "^9.0.0",
+    "c8": "^10.1.2",
     "eslint": "^9.1.1",
     "eslint-plugin-putout": "^22.0.0",
     "madrun": "^10.0.0",
diff --git a/packages/formatter-fail/package.json b/packages/formatter-fail/package.json
index bf7b6de..f2a2e16 100644
--- a/packages/formatter-fail/package.json
+++ b/packages/formatter-fail/package.json
@@ -32,7 +32,7 @@
     "supertape"
   ],
   "devDependencies": {
-    "c8": "^9.0.0",
+    "c8": "^10.1.2",
     "eslint": "^9.1.1",
     "eslint-plugin-putout": "^22.0.0",
     "madrun": "^10.0.0",
diff --git a/packages/formatter-json-lines/package.json b/packages/formatter-json-lines/package.json
index f960246..9899a2b 100644
--- a/packages/formatter-json-lines/package.json
+++ b/packages/formatter-json-lines/package.json
@@ -31,7 +31,7 @@
     "supertape"
   ],
   "devDependencies": {
-    "c8": "^9.0.0",
+    "c8": "^10.1.2",
     "eslint": "^9.1.1",
     "eslint-plugin-putout": "^22.0.0",
     "madrun": "^10.0.0",
diff --git a/packages/formatter-progress-bar/package.json b/packages/formatter-progress-bar/package.json
index 93f0575..5e3e9f0 100644
--- a/packages/formatter-progress-bar/package.json
+++ b/packages/formatter-progress-bar/package.json
@@ -35,7 +35,7 @@
     "supertape"
   ],
   "devDependencies": {
-    "c8": "^9.0.0",
+    "c8": "^10.1.2",
     "eslint": "^9.1.1",
     "eslint-plugin-putout": "^22.0.0",
     "madrun": "^10.0.0",
diff --git a/packages/formatter-short/package.json b/packages/formatter-short/package.json
index 06d5ce9..53e068a 100644
--- a/packages/formatter-short/package.json
+++ b/packages/formatter-short/package.json
@@ -29,7 +29,7 @@
     "supertape"
   ],
   "devDependencies": {
-    "c8": "^9.0.0",
+    "c8": "^10.1.2",
     "eslint": "^9.1.1",
     "eslint-plugin-putout": "^22.0.0",
     "madrun": "^10.0.0",
diff --git a/packages/formatter-tap/package.json b/packages/formatter-tap/package.json
index 0a27f7d..a9d3f03 100644
--- a/packages/formatter-tap/package.json
+++ b/packages/formatter-tap/package.json
@@ -29,7 +29,7 @@
     "supertape"
   ],
   "devDependencies": {
-    "c8": "^9.0.0",
+    "c8": "^10.1.2",
     "eslint": "^9.1.1",
     "eslint-plugin-putout": "^22.0.0",
     "madrun": "^10.0.0",
diff --git a/packages/formatter-time/package.json b/packages/formatter-time/package.json
index a6ae22e..a090266 100644
--- a/packages/formatter-time/package.json
+++ b/packages/formatter-time/package.json
@@ -36,7 +36,7 @@
     "supertape"
   ],
   "devDependencies": {
-    "c8": "^9.0.0",
+    "c8": "^10.1.2",
     "eslint": "^9.1.1",
     "eslint-plugin-putout": "^22.0.0",
     "madrun": "^10.0.0",
diff --git a/packages/operator-stub/package.json b/packages/operator-stub/package.json
index dec8b61..5bb8441 100644
--- a/packages/operator-stub/package.json
+++ b/packages/operator-stub/package.json
@@ -37,7 +37,7 @@
     "testing"
   ],
   "devDependencies": {
-    "c8": "^9.0.0",
+    "c8": "^10.1.2",
     "check-dts": "^0.8.0",
     "eslint": "^9.1.1",
     "eslint-plugin-putout": "^22.0.0",
diff --git a/packages/supertape/package.json b/packages/supertape/package.json
index e71542c..1c805fa 100644
--- a/packages/supertape/package.json
+++ b/packages/supertape/package.json
@@ -76,7 +76,7 @@
   "devDependencies": {
     "@iocmd/wait": "^2.1.0",
     "@putout/eslint-flat": "^2.0.0",
-    "c8": "^9.0.0",
+    "c8": "^10.1.2",
     "check-dts": "^0.8.0",
     "currify": "^4.0.0",
     "eslint": "^9.1.1",