diff --git a/package-lock.json b/package-lock.json
index ec2dff5..41ae395 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
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+  "version": "1.0.41",
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   "packages": {
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-      "version": "1.0.40",
+      "version": "1.0.41",
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@@ -15,7 +15,7 @@
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-        "c8": "^8.0.1",
+        "c8": "^9.1.0",
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         "cors": "^2.8.5",
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@@ -1672,19 +1672,18 @@
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-      "resolved": "https://registry.npmjs.org/c8/-/c8-8.0.1.tgz",
-      "integrity": "sha512-EINpopxZNH1mETuI0DzRA4MZpAUH+IFiRhnmFD3vFr3vdrgxqi3VfE3KL0AIL+zDq8rC9bZqwM/VDmmoe04y7w==",
+      "version": "9.1.0",
+      "resolved": "https://registry.npmjs.org/c8/-/c8-9.1.0.tgz",
+      "integrity": "sha512-mBWcT5iqNir1zIkzSPyI3NCR9EZCVI3WUD+AVO17MVWTSFNyUueXE82qTeampNtTr+ilN/5Ua3j24LgbCKjDVg==",
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       "dependencies": {
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         "@istanbuljs/schema": "^0.1.3",
         "find-up": "^5.0.0",
-        "foreground-child": "^2.0.0",
+        "foreground-child": "^3.1.1",
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         "istanbul-reports": "^3.1.6",
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@@ -1694,7 +1693,7 @@
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-        "node": ">=12"
+        "node": ">=14.14.0"
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     "node_modules/c8/node_modules/cliui": {
@@ -2973,16 +2972,31 @@
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       "dev": true,
       "dependencies": {
         "cross-spawn": "^7.0.0",
-        "signal-exit": "^3.0.2"
+        "signal-exit": "^4.0.1"
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       "engines": {
-        "node": ">=8.0.0"
+        "node": ">=14"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/isaacs"
+      }
+    },
+    "node_modules/foreground-child/node_modules/signal-exit": {
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+      "resolved": "https://registry.npmjs.org/signal-exit/-/signal-exit-4.1.0.tgz",
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+      "dev": true,
+      "engines": {
+        "node": ">=14"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/isaacs"
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@@ -7126,19 +7140,18 @@
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+      "version": "9.1.0",
+      "resolved": "https://registry.npmjs.org/c8/-/c8-9.1.0.tgz",
+      "integrity": "sha512-mBWcT5iqNir1zIkzSPyI3NCR9EZCVI3WUD+AVO17MVWTSFNyUueXE82qTeampNtTr+ilN/5Ua3j24LgbCKjDVg==",
       "dev": true,
       "requires": {
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         "@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",
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@@ -8104,13 +8117,21 @@
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+      "version": "3.1.1",
+      "resolved": "https://registry.npmjs.org/foreground-child/-/foreground-child-3.1.1.tgz",
+      "integrity": "sha512-TMKDUnIte6bfb5nWv7V/caI169OHgvwjb7V4WkeUvbQQdjr5rWKqHFiKWb/fcOwB+CzBT+qbWjvj+DVwRskpIg==",
       "dev": true,
       "requires": {
         "cross-spawn": "^7.0.0",
-        "signal-exit": "^3.0.2"
+        "signal-exit": "^4.0.1"
+      },
+      "dependencies": {
+        "signal-exit": {
+          "version": "4.1.0",
+          "resolved": "https://registry.npmjs.org/signal-exit/-/signal-exit-4.1.0.tgz",
+          "integrity": "sha512-bzyZ1e88w9O1iNJbKnOlvYTrWPDl46O1bG0D3XInv+9tkPrxrN8jUUTiFlDkkmKWgn1M6CfIA13SuGqOa9Korw==",
+          "dev": true
+        }
       }
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     "form-data": {
diff --git a/package.json b/package.json
index 3ba1d07..2d00fd7 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@digicatapult/resolver-cache-datasource",
-  "version": "1.0.40",
+  "version": "1.0.41",
   "description": "Resolver caching DataSource for Apollo GraphQL projects",
   "main": "lib/index.js",
   "author": "Digital Catapult (https://www.digicatapult.org.uk/)",
@@ -34,7 +34,7 @@
     "@apollo/server": "^4.10.0",
     "@apollo/utils.keyvaluecache": "^3.1.0",
     "@babel/eslint-parser": "^7.23.10",
-    "c8": "^8.0.1",
+    "c8": "^9.1.0",
     "chai": "^4.4.1",
     "cors": "^2.8.5",
     "depcheck": "^1.4.7",