diff --git a/package-lock.json b/package-lock.json
index 9b4a1ab..d5b5190 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -12,7 +12,7 @@
         "examples/*"
       ],
       "devDependencies": {
-        "@types/jest": "^26.0.23",
+        "@types/jest": "^27.0.2",
         "@types/node": "^16.0.0",
         "@typescript-eslint/eslint-plugin": "^4.28.1",
         "@typescript-eslint/parser": "^4.28.1",
@@ -2557,13 +2557,98 @@
       }
     },
     "node_modules/@types/jest": {
-      "version": "26.0.23",
-      "resolved": "https://registry.npmjs.org/@types/jest/-/jest-26.0.23.tgz",
-      "integrity": "sha512-ZHLmWMJ9jJ9PTiT58juykZpL7KjwJywFN3Rr2pTSkyQfydf/rk22yS7W8p5DaVUMQ2BQC7oYiU3FjbTM/mYrOA==",
+      "version": "27.0.2",
+      "resolved": "https://registry.npmjs.org/@types/jest/-/jest-27.0.2.tgz",
+      "integrity": "sha512-4dRxkS/AFX0c5XW6IPMNOydLn2tEhNhJV7DnYK+0bjoJZ+QTmfucBlihX7aoEsh/ocYtkLC73UbnBXBXIxsULA==",
       "dev": true,
       "dependencies": {
-        "jest-diff": "^26.0.0",
-        "pretty-format": "^26.0.0"
+        "jest-diff": "^27.0.0",
+        "pretty-format": "^27.0.0"
+      }
+    },
+    "node_modules/@types/jest/node_modules/@jest/types": {
+      "version": "27.1.1",
+      "resolved": "https://registry.npmjs.org/@jest/types/-/types-27.1.1.tgz",
+      "integrity": "sha512-yqJPDDseb0mXgKqmNqypCsb85C22K1aY5+LUxh7syIM9n/b0AsaltxNy+o6tt29VcfGDpYEve175bm3uOhcehA==",
+      "dev": true,
+      "dependencies": {
+        "@types/istanbul-lib-coverage": "^2.0.0",
+        "@types/istanbul-reports": "^3.0.0",
+        "@types/node": "*",
+        "@types/yargs": "^16.0.0",
+        "chalk": "^4.0.0"
+      },
+      "engines": {
+        "node": "^10.13.0 || ^12.13.0 || ^14.15.0 || >=15.0.0"
+      }
+    },
+    "node_modules/@types/jest/node_modules/@types/yargs": {
+      "version": "16.0.4",
+      "resolved": "https://registry.npmjs.org/@types/yargs/-/yargs-16.0.4.tgz",
+      "integrity": "sha512-T8Yc9wt/5LbJyCaLiHPReJa0kApcIgJ7Bn735GjItUfh08Z1pJvu8QZqb9s+mMvKV6WUQRV7K2R46YbjMXTTJw==",
+      "dev": true,
+      "dependencies": {
+        "@types/yargs-parser": "*"
+      }
+    },
+    "node_modules/@types/jest/node_modules/ansi-styles": {
+      "version": "5.2.0",
+      "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-5.2.0.tgz",
+      "integrity": "sha512-Cxwpt2SfTzTtXcfOlzGEee8O+c+MmUgGrNiBcXnuWxuFJHe6a5Hz7qwhwe5OgaSYI0IJvkLqWX1ASG+cJOkEiA==",
+      "dev": true,
+      "engines": {
+        "node": ">=10"
+      },
+      "funding": {
+        "url": "https://github.com/chalk/ansi-styles?sponsor=1"
+      }
+    },
+    "node_modules/@types/jest/node_modules/diff-sequences": {
+      "version": "27.0.6",
+      "resolved": "https://registry.npmjs.org/diff-sequences/-/diff-sequences-27.0.6.tgz",
+      "integrity": "sha512-ag6wfpBFyNXZ0p8pcuIDS//D8H062ZQJ3fzYxjpmeKjnz8W4pekL3AI8VohmyZmsWW2PWaHgjsmqR6L13101VQ==",
+      "dev": true,
+      "engines": {
+        "node": "^10.13.0 || ^12.13.0 || ^14.15.0 || >=15.0.0"
+      }
+    },
+    "node_modules/@types/jest/node_modules/jest-diff": {
+      "version": "27.2.0",
+      "resolved": "https://registry.npmjs.org/jest-diff/-/jest-diff-27.2.0.tgz",
+      "integrity": "sha512-QSO9WC6btFYWtRJ3Hac0sRrkspf7B01mGrrQEiCW6TobtViJ9RWL0EmOs/WnBsZDsI/Y2IoSHZA2x6offu0sYw==",
+      "dev": true,
+      "dependencies": {
+        "chalk": "^4.0.0",
+        "diff-sequences": "^27.0.6",
+        "jest-get-type": "^27.0.6",
+        "pretty-format": "^27.2.0"
+      },
+      "engines": {
+        "node": "^10.13.0 || ^12.13.0 || ^14.15.0 || >=15.0.0"
+      }
+    },
+    "node_modules/@types/jest/node_modules/jest-get-type": {
+      "version": "27.0.6",
+      "resolved": "https://registry.npmjs.org/jest-get-type/-/jest-get-type-27.0.6.tgz",
+      "integrity": "sha512-XTkK5exIeUbbveehcSR8w0bhH+c0yloW/Wpl+9vZrjzztCPWrxhHwkIFpZzCt71oRBsgxmuUfxEqOYoZI2macg==",
+      "dev": true,
+      "engines": {
+        "node": "^10.13.0 || ^12.13.0 || ^14.15.0 || >=15.0.0"
+      }
+    },
+    "node_modules/@types/jest/node_modules/pretty-format": {
+      "version": "27.2.0",
+      "resolved": "https://registry.npmjs.org/pretty-format/-/pretty-format-27.2.0.tgz",
+      "integrity": "sha512-KyJdmgBkMscLqo8A7K77omgLx5PWPiXJswtTtFV7XgVZv2+qPk6UivpXXO+5k6ZEbWIbLoKdx1pZ6ldINzbwTA==",
+      "dev": true,
+      "dependencies": {
+        "@jest/types": "^27.1.1",
+        "ansi-regex": "^5.0.0",
+        "ansi-styles": "^5.0.0",
+        "react-is": "^17.0.1"
+      },
+      "engines": {
+        "node": "^10.13.0 || ^12.13.0 || ^14.15.0 || >=15.0.0"
       }
     },
     "node_modules/@types/json-schema": {
@@ -17896,28 +17981,22 @@
     },
     "packages/decorators": {
       "name": "@course-design/decorators",
-      "version": "1.1.1",
+      "version": "1.1.2",
       "license": "ISC"
     },
     "packages/jsonlike": {
-      "version": "1.1.4",
+      "version": "1.1.7",
       "license": "ISC",
       "devDependencies": {
-        "@course-design/types": "^1.1.3"
+        "@course-design/types": "^1.2.1"
       },
       "peerDependencies": {
-        "@course-design/types": "^1.1.3"
+        "@course-design/types": "^1.2.1"
       }
     },
-    "packages/jsonlike/node_modules/@course-design/types": {
-      "version": "1.1.0",
-      "resolved": "https://registry.npmjs.org/@course-design/types/-/types-1.1.0.tgz",
-      "integrity": "sha512-Ex+cpkrPaPeXErwpSaLyGVTuI84f8P7P6QjMXLIvZ3lAVmMSILFs37I6eKPiINh246iVzHUGsaVHmAU1Iiq1hw==",
-      "dev": true
-    },
     "packages/types": {
       "name": "@course-design/types",
-      "version": "1.1.3",
+      "version": "1.2.1",
       "license": "ISC"
     }
   },
@@ -20039,13 +20118,79 @@
       }
     },
     "@types/jest": {
-      "version": "26.0.23",
-      "resolved": "https://registry.npmjs.org/@types/jest/-/jest-26.0.23.tgz",
-      "integrity": "sha512-ZHLmWMJ9jJ9PTiT58juykZpL7KjwJywFN3Rr2pTSkyQfydf/rk22yS7W8p5DaVUMQ2BQC7oYiU3FjbTM/mYrOA==",
+      "version": "27.0.2",
+      "resolved": "https://registry.npmjs.org/@types/jest/-/jest-27.0.2.tgz",
+      "integrity": "sha512-4dRxkS/AFX0c5XW6IPMNOydLn2tEhNhJV7DnYK+0bjoJZ+QTmfucBlihX7aoEsh/ocYtkLC73UbnBXBXIxsULA==",
       "dev": true,
       "requires": {
-        "jest-diff": "^26.0.0",
-        "pretty-format": "^26.0.0"
+        "jest-diff": "^27.0.0",
+        "pretty-format": "^27.0.0"
+      },
+      "dependencies": {
+        "@jest/types": {
+          "version": "27.1.1",
+          "resolved": "https://registry.npmjs.org/@jest/types/-/types-27.1.1.tgz",
+          "integrity": "sha512-yqJPDDseb0mXgKqmNqypCsb85C22K1aY5+LUxh7syIM9n/b0AsaltxNy+o6tt29VcfGDpYEve175bm3uOhcehA==",
+          "dev": true,
+          "requires": {
+            "@types/istanbul-lib-coverage": "^2.0.0",
+            "@types/istanbul-reports": "^3.0.0",
+            "@types/node": "*",
+            "@types/yargs": "^16.0.0",
+            "chalk": "^4.0.0"
+          }
+        },
+        "@types/yargs": {
+          "version": "16.0.4",
+          "resolved": "https://registry.npmjs.org/@types/yargs/-/yargs-16.0.4.tgz",
+          "integrity": "sha512-T8Yc9wt/5LbJyCaLiHPReJa0kApcIgJ7Bn735GjItUfh08Z1pJvu8QZqb9s+mMvKV6WUQRV7K2R46YbjMXTTJw==",
+          "dev": true,
+          "requires": {
+            "@types/yargs-parser": "*"
+          }
+        },
+        "ansi-styles": {
+          "version": "5.2.0",
+          "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-5.2.0.tgz",
+          "integrity": "sha512-Cxwpt2SfTzTtXcfOlzGEee8O+c+MmUgGrNiBcXnuWxuFJHe6a5Hz7qwhwe5OgaSYI0IJvkLqWX1ASG+cJOkEiA==",
+          "dev": true
+        },
+        "diff-sequences": {
+          "version": "27.0.6",
+          "resolved": "https://registry.npmjs.org/diff-sequences/-/diff-sequences-27.0.6.tgz",
+          "integrity": "sha512-ag6wfpBFyNXZ0p8pcuIDS//D8H062ZQJ3fzYxjpmeKjnz8W4pekL3AI8VohmyZmsWW2PWaHgjsmqR6L13101VQ==",
+          "dev": true
+        },
+        "jest-diff": {
+          "version": "27.2.0",
+          "resolved": "https://registry.npmjs.org/jest-diff/-/jest-diff-27.2.0.tgz",
+          "integrity": "sha512-QSO9WC6btFYWtRJ3Hac0sRrkspf7B01mGrrQEiCW6TobtViJ9RWL0EmOs/WnBsZDsI/Y2IoSHZA2x6offu0sYw==",
+          "dev": true,
+          "requires": {
+            "chalk": "^4.0.0",
+            "diff-sequences": "^27.0.6",
+            "jest-get-type": "^27.0.6",
+            "pretty-format": "^27.2.0"
+          }
+        },
+        "jest-get-type": {
+          "version": "27.0.6",
+          "resolved": "https://registry.npmjs.org/jest-get-type/-/jest-get-type-27.0.6.tgz",
+          "integrity": "sha512-XTkK5exIeUbbveehcSR8w0bhH+c0yloW/Wpl+9vZrjzztCPWrxhHwkIFpZzCt71oRBsgxmuUfxEqOYoZI2macg==",
+          "dev": true
+        },
+        "pretty-format": {
+          "version": "27.2.0",
+          "resolved": "https://registry.npmjs.org/pretty-format/-/pretty-format-27.2.0.tgz",
+          "integrity": "sha512-KyJdmgBkMscLqo8A7K77omgLx5PWPiXJswtTtFV7XgVZv2+qPk6UivpXXO+5k6ZEbWIbLoKdx1pZ6ldINzbwTA==",
+          "dev": true,
+          "requires": {
+            "@jest/types": "^27.1.1",
+            "ansi-regex": "^5.0.0",
+            "ansi-styles": "^5.0.0",
+            "react-is": "^17.0.1"
+          }
+        }
       }
     },
     "@types/json-schema": {
@@ -26149,14 +26294,7 @@
     "jsonlike": {
       "version": "file:packages/jsonlike",
       "requires": {
-        "@course-design/types": "^1.1.3"
-      },
-      "dependencies": {
-        "@course-design/types": {
-          "version": "https://registry.npmjs.org/@course-design/types/-/types-1.1.0.tgz",
-          "integrity": "sha512-Ex+cpkrPaPeXErwpSaLyGVTuI84f8P7P6QjMXLIvZ3lAVmMSILFs37I6eKPiINh246iVzHUGsaVHmAU1Iiq1hw==",
-          "dev": true
-        }
+        "@course-design/types": "^1.2.1"
       }
     },
     "jsonparse": {
diff --git a/package.json b/package.json
index 19aebe0..8cdd16d 100644
--- a/package.json
+++ b/package.json
@@ -21,7 +21,7 @@
     "postpublish": "pinst --enable"
   },
   "devDependencies": {
-    "@types/jest": "^26.0.23",
+    "@types/jest": "^27.0.2",
     "@types/node": "^16.0.0",
     "@typescript-eslint/eslint-plugin": "^4.28.1",
     "@typescript-eslint/parser": "^4.28.1",