diff --git a/package-lock.json b/package-lock.json
index 647ab44..b5f4ee4 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1445,14 +1445,64 @@
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-      "resolved": "https://registry.npmjs.org/taskgroup/-/taskgroup-7.17.0.tgz",
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+      "resolved": "https://registry.npmjs.org/taskgroup/-/taskgroup-9.5.0.tgz",
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         "ambi": "3.2.0",
-        "eachr": "^4.5.0",
-        "extendr": "^5.16.0",
-        "unbounded": "^3.12.0"
+        "eachr": "^6.6.0",
+        "editions": "^6.16.0",
+        "extendr": "^7.4.0",
+        "unbounded": "^5.3.0"
+      },
+      "dependencies": {
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+          "resolved": "https://registry.npmjs.org/eachr/-/eachr-6.6.0.tgz",
+          "integrity": "sha512-e3ck9m2B8SWtJSPm8V5pK/2nteaCpzeekgRR7VnOQt1Bpu9uyf6mBoy/ZHeHlQuZrAQ/dcxTxZJ4keDMmbcJ0w==",
+          "requires": {
+            "editions": "^6.15.0",
+            "typechecker": "^8.5.0"
+          }
+        },
+        "editions": {
+          "version": "6.16.0",
+          "resolved": "https://registry.npmjs.org/editions/-/editions-6.16.0.tgz",
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+          "requires": {
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+          }
+        },
+        "extendr": {
+          "version": "7.4.0",
+          "resolved": "https://registry.npmjs.org/extendr/-/extendr-7.4.0.tgz",
+          "integrity": "sha512-mY4d+PB4Qzse/rovDu4gW63VeZJk4uZ3tsf5dV6wUVdw02sxYylAKqfy73hUMh4z6rEfUA203m4Rc6061bGm8A==",
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+            "editions": "^6.16.0",
+            "typechecker": "^8.5.0"
+          }
+        },
+        "typechecker": {
+          "version": "8.6.0",
+          "resolved": "https://registry.npmjs.org/typechecker/-/typechecker-8.6.0.tgz",
+          "integrity": "sha512-s803IhKCZLZ9ZbYArmRzI+0gqUGE9TEzz4hR2EXF0ecFaZTIHv6QFduYhwbhdTruIO+R9UkhB6hOP5SGsv9ksw==",
+          "requires": {
+            "editions": "^6.16.0"
+          }
+        },
+        "unbounded": {
+          "version": "5.4.0",
+          "resolved": "https://registry.npmjs.org/unbounded/-/unbounded-5.4.0.tgz",
+          "integrity": "sha512-WHERFq/Dai+nSE8zJEC1K38IvZW7NF4EmYGQPN1S2bGx72Bk9nOH7dmBsukxWoT2vqe2KkHgfvrg8ylP5L7LFQ==",
+          "requires": {
+            "editions": "^6.16.0"
+          }
+        },
+        "version-range": {
+          "version": "4.8.0",
+          "resolved": "https://registry.npmjs.org/version-range/-/version-range-4.8.0.tgz",
+          "integrity": "sha512-9f/3JWSAky9xO8SHiDUWD/5M0C54HVryDo1Zn3bgoVSTHoF/7RS4GqCiSUInDxmaOfMUkdIyPw7mpMMnJd9tTw=="
+        }
       }
     },
     "textextensions": {
@@ -1496,7 +1546,8 @@
     "unbounded": {
       "version": "3.13.0",
       "resolved": "https://registry.npmjs.org/unbounded/-/unbounded-3.13.0.tgz",
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+      "integrity": "sha512-biPOTr/SqIpqcpRC4czLMuPIWJ1H27w6/BUjv7tGTBappz8Ekiw9mHk1iOOTNNkzvaNLJj5TXiHIuLpkQPdXdw==",
+      "dev": true
     },
     "underscore": {
       "version": "1.11.0",
diff --git a/package.json b/package.json
index 2582758..386a03b 100644
--- a/package.json
+++ b/package.json
@@ -104,7 +104,7 @@
   "main": "edition-esnext/index.js",
   "dependencies": {
     "docpad-baseplugin": "^1.4.0",
-    "taskgroup": "^7.17.0"
+    "taskgroup": "^9.5.0"
   },
   "devDependencies": {
     "@bevry/update-contributors": "^1.18.0",