diff --git a/package.json b/package.json
index 0a175506..cf5ea6be 100644
--- a/package.json
+++ b/package.json
@@ -55,7 +55,7 @@
     "@types/node": "18.18.13",
     "@typescript-eslint/eslint-plugin": "6.21.0",
     "@typescript-eslint/parser": "6.21.0",
-    "c8": "8.0.1",
+    "c8": "9.1.0",
     "concurrently": "8.2.2",
     "eslint": "8.57.0",
     "eslint-config-prettier": "9.1.0",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index e1e761d9..5dda0656 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -31,8 +31,8 @@ importers:
         specifier: 6.21.0
         version: 6.21.0(eslint@8.57.0)(typescript@5.4.5)
       c8:
-        specifier: 8.0.1
-        version: 8.0.1
+        specifier: 9.1.0
+        version: 9.1.0
       concurrently:
         specifier: 8.2.2
         version: 8.2.2
@@ -1458,19 +1458,18 @@ packages:
       streamsearch: 1.1.0
     dev: false
 
-  /c8@8.0.1:
-    resolution: {integrity: sha512-EINpopxZNH1mETuI0DzRA4MZpAUH+IFiRhnmFD3vFr3vdrgxqi3VfE3KL0AIL+zDq8rC9bZqwM/VDmmoe04y7w==}
-    engines: {node: '>=12'}
+  /c8@9.1.0:
+    resolution: {integrity: sha512-mBWcT5iqNir1zIkzSPyI3NCR9EZCVI3WUD+AVO17MVWTSFNyUueXE82qTeampNtTr+ilN/5Ua3j24LgbCKjDVg==}
+    engines: {node: '>=14.14.0'}
     hasBin: true
     dependencies:
       '@bcoe/v8-coverage': 0.2.3
       '@istanbuljs/schema': 0.1.3
       find-up: 5.0.0
-      foreground-child: 2.0.0
+      foreground-child: 3.1.1
       istanbul-lib-coverage: 3.2.0
       istanbul-lib-report: 3.0.1
       istanbul-reports: 3.1.6
-      rimraf: 3.0.2
       test-exclude: 6.0.0
       v8-to-istanbul: 9.1.0
       yargs: 17.7.2
@@ -2500,12 +2499,12 @@ packages:
       is-callable: 1.2.7
     dev: true
 
-  /foreground-child@2.0.0:
-    resolution: {integrity: sha512-dCIq9FpEcyQyXKCkyzmlPTFNgrCzPudOe+mhvJU5zAtlBnGVy2yKxtfsxK2tQBThwq225jcvBjpw1Gr40uzZCA==}
-    engines: {node: '>=8.0.0'}
+  /foreground-child@3.1.1:
+    resolution: {integrity: sha512-TMKDUnIte6bfb5nWv7V/caI169OHgvwjb7V4WkeUvbQQdjr5rWKqHFiKWb/fcOwB+CzBT+qbWjvj+DVwRskpIg==}
+    engines: {node: '>=14'}
     dependencies:
       cross-spawn: 7.0.3
-      signal-exit: 3.0.7
+      signal-exit: 4.1.0
     dev: true
 
   /fraction.js@4.3.7:
@@ -3928,6 +3927,11 @@ packages:
     resolution: {integrity: sha512-wnD2ZE+l+SPC/uoS0vXeE9L1+0wuaMqKlfz9AMUo38JsyLSBWSFcHR1Rri62LZc12vLr1gb3jl7iwQhgwpAbGQ==}
     dev: true
 
+  /signal-exit@4.1.0:
+    resolution: {integrity: sha512-bzyZ1e88w9O1iNJbKnOlvYTrWPDl46O1bG0D3XInv+9tkPrxrN8jUUTiFlDkkmKWgn1M6CfIA13SuGqOa9Korw==}
+    engines: {node: '>=14'}
+    dev: true
+
   /slash@3.0.0:
     resolution: {integrity: sha512-g9Q1haeby36OSStwb4ntCGGGaKsaVSjQ68fBxoQcutl5fS1vuY18H3wSt3jFyFtrkx+Kz0V1G85A4MyAdDMi2Q==}
     engines: {node: '>=8'}