diff --git a/docs/resources/changelog.md b/docs/resources/changelog.md
index c1798d45..1905678a 100644
--- a/docs/resources/changelog.md
+++ b/docs/resources/changelog.md
@@ -17,6 +17,7 @@ _During the beta period, these restrictions may be relaxed in the event of a mis
 - Updated to Bootstrap Icons 1.5.0
 - Updated React docs to use [`@shoelace-style/react`](https://github.com/shoelace-style/react)
 - Updated NextJS docs [#434](https://github.com/shoelace-style/shoelace/pull/434)
+- Updated TypeScript to 4.2.4
 
 ## 2.0.0-beta.39
 
diff --git a/package-lock.json b/package-lock.json
index 75000ee4..9dbe4b15 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -39,9 +39,9 @@
         "recursive-copy": "^2.0.11",
         "sass": "^1.32.7",
         "tiny-glob": "^0.2.8",
-        "tslib": "^2.1.0",
+        "tslib": "^2.2.0",
         "typedoc": "^0.20.28",
-        "typescript": "4.1.5",
+        "typescript": "^4.2.4",
         "wait-on": "^5.2.1"
       },
       "funding": {
@@ -4662,9 +4662,9 @@
       }
     },
     "node_modules/tslib": {
-      "version": "2.1.0",
-      "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.1.0.tgz",
-      "integrity": "sha512-hcVC3wYEziELGGmEEXue7D75zbwIIVUMWAVbHItGPx0ziyXxrOMQx4rQEVEV45Ut/1IotuEvwqPopzIOkDMf0A==",
+      "version": "2.2.0",
+      "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.2.0.tgz",
+      "integrity": "sha512-gS9GVHRU+RGn5KQM2rllAlR3dU6m7AcpJKdtH8gFvQiC4Otgk98XnmMU+nZenHt/+VhnBPWwgrJsyrdcw6i23w==",
       "dev": true
     },
     "node_modules/typedoc": {
@@ -4736,9 +4736,9 @@
       }
     },
     "node_modules/typescript": {
-      "version": "4.1.5",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.1.5.tgz",
-      "integrity": "sha512-6OSu9PTIzmn9TCDiovULTnET6BgXtDYL4Gg4szY+cGsc3JP1dQL8qvE8kShTRx1NIw4Q9IBHlwODjkjWEtMUyA==",
+      "version": "4.2.4",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.2.4.tgz",
+      "integrity": "sha512-V+evlYHZnQkaz8TRBuxTA92yZBPotr5H+WhQ7bD3hZUndx5tGOa1fuCgeSjxAzM1RiN5IzvadIXTVefuuwZCRg==",
       "dev": true,
       "bin": {
         "tsc": "bin/tsc",
@@ -9021,9 +9021,9 @@
       }
     },
     "tslib": {
-      "version": "2.1.0",
-      "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.1.0.tgz",
-      "integrity": "sha512-hcVC3wYEziELGGmEEXue7D75zbwIIVUMWAVbHItGPx0ziyXxrOMQx4rQEVEV45Ut/1IotuEvwqPopzIOkDMf0A==",
+      "version": "2.2.0",
+      "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.2.0.tgz",
+      "integrity": "sha512-gS9GVHRU+RGn5KQM2rllAlR3dU6m7AcpJKdtH8gFvQiC4Otgk98XnmMU+nZenHt/+VhnBPWwgrJsyrdcw6i23w==",
       "dev": true
     },
     "typedoc": {
@@ -9082,9 +9082,9 @@
       "dev": true
     },
     "typescript": {
-      "version": "4.1.5",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.1.5.tgz",
-      "integrity": "sha512-6OSu9PTIzmn9TCDiovULTnET6BgXtDYL4Gg4szY+cGsc3JP1dQL8qvE8kShTRx1NIw4Q9IBHlwODjkjWEtMUyA==",
+      "version": "4.2.4",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.2.4.tgz",
+      "integrity": "sha512-V+evlYHZnQkaz8TRBuxTA92yZBPotr5H+WhQ7bD3hZUndx5tGOa1fuCgeSjxAzM1RiN5IzvadIXTVefuuwZCRg==",
       "dev": true
     },
     "typical": {
diff --git a/package.json b/package.json
index d8679ef1..1697160c 100644
--- a/package.json
+++ b/package.json
@@ -66,9 +66,9 @@
     "recursive-copy": "^2.0.11",
     "sass": "^1.32.7",
     "tiny-glob": "^0.2.8",
-    "tslib": "^2.1.0",
+    "tslib": "^2.2.0",
     "typedoc": "^0.20.28",
-    "typescript": "4.1.5",
+    "typescript": "^4.2.4",
     "wait-on": "^5.2.1"
   },
   "husky": {