diff --git a/packages/tailwindcss-language-server/tsconfig.json b/packages/tailwindcss-language-server/tsconfig.json
index 96f05fe..bbf2dc8 100755
--- a/packages/tailwindcss-language-server/tsconfig.json
+++ b/packages/tailwindcss-language-server/tsconfig.json
@@ -2,7 +2,7 @@
   "compilerOptions": {
     "module": "commonjs",
     "target": "es6",
-    "lib": ["ES2019"],
+    "lib": ["ES2020"],
     "rootDir": "..",
     "sourceMap": true,
     "moduleResolution": "node",
diff --git a/packages/tailwindcss-language-service/tsconfig.json b/packages/tailwindcss-language-service/tsconfig.json
index 0e325cb..a3cfa3c 100644
--- a/packages/tailwindcss-language-service/tsconfig.json
+++ b/packages/tailwindcss-language-service/tsconfig.json
@@ -2,7 +2,7 @@
   "include": ["src", "../../types"],
   "compilerOptions": {
     "module": "esnext",
-    "lib": ["dom", "esnext"],
+    "lib": ["ES2020"],
     "importHelpers": true,
     "declaration": true,
     "sourceMap": true,
diff --git a/packages/vscode-tailwindcss/tsconfig.json b/packages/vscode-tailwindcss/tsconfig.json
index c20b7a7..ec2fcae 100755
--- a/packages/vscode-tailwindcss/tsconfig.json
+++ b/packages/vscode-tailwindcss/tsconfig.json
@@ -2,7 +2,7 @@
   "compilerOptions": {
     "module": "commonjs",
     "target": "es6",
-    "lib": ["ES2019"],
+    "lib": ["ES2020"],
     "rootDir": "..",
     "sourceMap": true,
     "moduleResolution": "node",