diff --git a/package-lock.json b/package-lock.json
index d86cc02..a2af967 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -17,7 +17,7 @@
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-        "assert-helpers": "^8.4.0",
+        "assert-helpers": "^11.12.0",
         "bal-util": "^2.8.0",
         "core-js": "^3.16.0",
         "eslint": "^7.31.0",
@@ -375,14 +375,44 @@
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+      "resolved": "https://registry.npmjs.org/assert-helpers/-/assert-helpers-11.12.0.tgz",
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+      "dependencies": {
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+        "editions": "^6.20.0",
+        "errlop": "^8.4.0"
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+        "node": ">=4"
+      },
+      "funding": {
+        "url": "https://bevry.me/fund"
+      }
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+    "node_modules/assert-helpers/node_modules/@bevry/ansi": {
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+      "resolved": "https://registry.npmjs.org/@bevry/ansi/-/ansi-6.9.0.tgz",
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+      "dev": true,
+      "dependencies": {
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+      },
+      "engines": {
+        "node": ">=4"
+      },
+      "funding": {
+        "url": "https://bevry.me/fund"
+      }
+    },
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       "dependencies": {
-        "@bevry/ansi": "^3.3.0",
-        "editions": "^6.5.0",
-        "errlop": "^4.2.0"
+        "editions": "^6.20.0"
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@@ -1103,12 +1133,12 @@
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+      "resolved": "https://registry.npmjs.org/editions/-/editions-6.21.0.tgz",
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       "dev": true,
       "dependencies": {
-        "version-range": "^1.2.0"
+        "version-range": "^4.13.0"
       },
       "engines": {
         "node": ">=4"
@@ -3856,26 +3886,11 @@
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-      "resolved": "https://registry.npmjs.org/version-compare/-/version-compare-1.2.0.tgz",
-      "integrity": "sha512-hfc76oyGqCuyofT85uDNbjt4khHijJEmU+0n5Vp6TDPg5WzorV7o8BtGyFJjJHN+5SHJM4gVpyvcdY9x/X5wSQ==",
-      "dev": true,
-      "engines": {
-        "node": ">=4"
-      },
-      "funding": {
-        "url": "https://bevry.me/fund"
-      }
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     "node_modules/version-range": {
-      "version": "1.2.0",
-      "resolved": "https://registry.npmjs.org/version-range/-/version-range-1.2.0.tgz",
-      "integrity": "sha512-dtpGs3yyiQdPLKLGunbfbNDM14g7rH5u1T+/+uyndyPuFBRrFKjMjkLwdD4PsUZlawz9i1DWFJPEw2bCKFJAhQ==",
+      "version": "4.13.0",
+      "resolved": "https://registry.npmjs.org/version-range/-/version-range-4.13.0.tgz",
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@@ -4174,14 +4189,34 @@
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-      "resolved": "https://registry.npmjs.org/assert-helpers/-/assert-helpers-8.4.0.tgz",
-      "integrity": "sha512-dSPOQr+QsAPplXkMymUxY+oQJnHcgxm9oKNJ2jC8pPx00HEAmHqvBok1nTfGLUSiuD/RhTjVy2iNl7Wj3YFBCg==",
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+      "resolved": "https://registry.npmjs.org/assert-helpers/-/assert-helpers-11.12.0.tgz",
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       "dev": true,
       "requires": {
-        "@bevry/ansi": "^3.3.0",
-        "editions": "^6.5.0",
-        "errlop": "^4.2.0"
+        "@bevry/ansi": "^6.9.0",
+        "editions": "^6.20.0",
+        "errlop": "^8.4.0"
+      },
+      "dependencies": {
+        "@bevry/ansi": {
+          "version": "6.9.0",
+          "resolved": "https://registry.npmjs.org/@bevry/ansi/-/ansi-6.9.0.tgz",
+          "integrity": "sha512-0XF5KVdRyjtw5+iVWBeEFOVvnKyQd/V8wSNYRDdWdvLvebzHw8UUkO6Iea78m7yevXZ99oHpv/6F7agdIG6t2g==",
+          "dev": true,
+          "requires": {
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+          }
+        },
+        "errlop": {
+          "version": "8.4.0",
+          "resolved": "https://registry.npmjs.org/errlop/-/errlop-8.4.0.tgz",
+          "integrity": "sha512-uTI5IgHMfsuBw9t/NWnKGKGbkMxMfDLceci9Um8Qxe33WqZeBk3IX7ndOBT1Bpo+RRyDBI67KOOb3DYPJwoqyg==",
+          "dev": true,
+          "requires": {
+            "editions": "^6.20.0"
+          }
+        }
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     },
     "assert-plus": {
@@ -4709,12 +4744,12 @@
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-      "resolved": "https://registry.npmjs.org/editions/-/editions-6.7.0.tgz",
-      "integrity": "sha512-c4277FrLdMcqEq/furtDBjXIhN+qPnBxng5IQRtJZEOttf0LTz7m5hm/D0GCwn9RXCBFgpTTc/x5DAuigZdBkw==",
+      "version": "6.21.0",
+      "resolved": "https://registry.npmjs.org/editions/-/editions-6.21.0.tgz",
+      "integrity": "sha512-ofkXJtn7z0urokN62DI3SBo/5xAtF0rR7tn+S/bSYV79Ka8pTajIIl+fFQ1q88DQEImymmo97M4azY3WX/nUdg==",
       "dev": true,
       "requires": {
-        "version-range": "^1.2.0"
+        "version-range": "^4.13.0"
       }
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@@ -6737,20 +6772,11 @@
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-      "resolved": "https://registry.npmjs.org/version-compare/-/version-compare-1.2.0.tgz",
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-      "dev": true,
-      "requires": {
-        "version-compare": "^1.2.0"
-      }
+      "version": "4.13.0",
+      "resolved": "https://registry.npmjs.org/version-range/-/version-range-4.13.0.tgz",
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+      "dev": true
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diff --git a/package.json b/package.json
index ae209ab..4b58aaf 100644
--- a/package.json
+++ b/package.json
@@ -104,7 +104,7 @@
   },
   "devDependencies": {
     "@bevry/update-contributors": "^1.20.0",
-    "assert-helpers": "^8.4.0",
+    "assert-helpers": "^11.12.0",
     "bal-util": "^2.8.0",
     "core-js": "^3.16.0",
     "eslint": "^7.31.0",