diff --git a/examples/svelte-example/package.json b/examples/svelte-example/package.json
index 8082f1052..a81733d80 100644
--- a/examples/svelte-example/package.json
+++ b/examples/svelte-example/package.json
@@ -24,7 +24,7 @@
     "svelte-check": "^1.0.0",
     "svelte-preprocess": "^4.6.1",
     "tslib": "^2.0.0",
-    "typescript": "^3.9.3"
+    "typescript": "~4.1"
   },
   "dependencies": {
     "@uppy/core": "file:../../packages/@uppy/core",
diff --git a/package-lock.json b/package-lock.json
index 3c2e9c0c6..c6978e067 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -108,7 +108,7 @@
         "tsd": "^0.11.0",
         "tsify": "5.0.1",
         "tus-node-server": "0.3.2",
-        "typescript": "3.9.3",
+        "typescript": "~4.1",
         "verdaccio": "^4.8.0",
         "watchify": "3.11.1",
         "webdriverio": "5.18.6",
@@ -740,7 +740,7 @@
         "svelte-check": "^1.0.0",
         "svelte-preprocess": "^4.6.1",
         "tslib": "^2.0.0",
-        "typescript": "^3.9.3"
+        "typescript": "~4.1"
       }
     },
     "examples/svelte-example/node_modules/postcss": {
@@ -51326,9 +51326,9 @@
       }
     },
     "node_modules/typescript": {
-      "version": "3.9.3",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.9.3.tgz",
-      "integrity": "sha512-D/wqnB2xzNFIcoBG9FG8cXRDjiqSTbG2wd8DMZeQyJlP1vfTkIxH4GKveWaEBYySKIg+USu+E+EDIR47SqnaMQ==",
+      "version": "4.1.5",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.1.5.tgz",
+      "integrity": "sha512-6OSu9PTIzmn9TCDiovULTnET6BgXtDYL4Gg4szY+cGsc3JP1dQL8qvE8kShTRx1NIw4Q9IBHlwODjkjWEtMUyA==",
       "dev": true,
       "bin": {
         "tsc": "bin/tsc",
@@ -56935,7 +56935,7 @@
         "@types/uuid": "3.4.7",
         "@types/ws": "6.0.4",
         "supertest": "3.4.2",
-        "typescript": "3.7.5"
+        "typescript": "~4.1"
       },
       "engines": {
         "node": ">=10.20.1",
@@ -63445,7 +63445,7 @@
         "svelte-check": "^1.0.0",
         "svelte-preprocess": "^4.6.1",
         "tslib": "^2.0.0",
-        "typescript": "^3.9.3"
+        "typescript": "~4.1"
       },
       "dependencies": {
         "postcss": {
@@ -63655,7 +63655,7 @@
         "serialize-error": "^2.1.0",
         "supertest": "3.4.2",
         "tus-js-client": "2.1.1",
-        "typescript": "3.7.5",
+        "typescript": "~4.1",
         "uuid": "8.1.0",
         "validator": "^12.1.0",
         "ws": "6.2.1"
@@ -63719,8 +63719,7 @@
           "integrity": "sha1-ULZ51WNc34Rme9yOWa9OW4HV9go="
         },
         "typescript": {
-          "version": "3.7.5",
-          "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.7.5.tgz",
+          "version": "https://registry.npmjs.org/typescript/-/typescript-3.7.5.tgz",
           "integrity": "sha512-/P5lkRXkWHNAbcJIiHPfRoKqyd7bsyCma1hZNUGfn20qm64T6ZBlrzprymeu918H+mB/0rIg2gGK/BXkhhYgBw==",
           "dev": true
         },
@@ -99694,9 +99693,9 @@
       }
     },
     "typescript": {
-      "version": "3.9.3",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.9.3.tgz",
-      "integrity": "sha512-D/wqnB2xzNFIcoBG9FG8cXRDjiqSTbG2wd8DMZeQyJlP1vfTkIxH4GKveWaEBYySKIg+USu+E+EDIR47SqnaMQ==",
+      "version": "4.1.5",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.1.5.tgz",
+      "integrity": "sha512-6OSu9PTIzmn9TCDiovULTnET6BgXtDYL4Gg4szY+cGsc3JP1dQL8qvE8kShTRx1NIw4Q9IBHlwODjkjWEtMUyA==",
       "dev": true
     },
     "ua-parser-js": {
diff --git a/package.json b/package.json
index ddaf7e6d4..e26133bd7 100644
--- a/package.json
+++ b/package.json
@@ -122,7 +122,7 @@
     "tsd": "^0.11.0",
     "tsify": "5.0.1",
     "tus-node-server": "0.3.2",
-    "typescript": "3.9.3",
+    "typescript": "~4.1",
     "verdaccio": "^4.8.0",
     "watchify": "3.11.1",
     "webdriverio": "5.18.6",
diff --git a/packages/@uppy/companion/package.json b/packages/@uppy/companion/package.json
index 956f48647..b43e20671 100644
--- a/packages/@uppy/companion/package.json
+++ b/packages/@uppy/companion/package.json
@@ -85,7 +85,7 @@
     "@types/uuid": "3.4.7",
     "@types/ws": "6.0.4",
     "supertest": "3.4.2",
-    "typescript": "3.7.5"
+    "typescript": "~4.1"
   },
   "files": [
     "bin/",