diff --git a/packages/tailwindcss-language-server/tsconfig.json b/packages/tailwindcss-language-server/tsconfig.json
index bbf2dc860eb7ff47c62787b0e157b141cd75bf5c..96f05fe9f171f9283900a45d277026f57c18dff9 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": ["ES2020"],
+    "lib": ["ES2019"],
     "rootDir": "..",
     "sourceMap": true,
     "moduleResolution": "node",
diff --git a/packages/tailwindcss-language-service/tsconfig.json b/packages/tailwindcss-language-service/tsconfig.json
index a3cfa3cc0a036d4b91c380b35f7f84fa99593ed5..0e325cbed2a8872a7bc7816dfb001304d908b5fb 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": ["ES2020"],
+    "lib": ["dom", "esnext"],
     "importHelpers": true,
     "declaration": true,
     "sourceMap": true,
diff --git a/packages/vscode-tailwindcss/tsconfig.json b/packages/vscode-tailwindcss/tsconfig.json
index ec2fcae84c4f2da507324a13a3902e3c430ff7cc..c20b7a7b2417451dab6b3f926636ead3b5fdcb82 100755
--- a/packages/vscode-tailwindcss/tsconfig.json
+++ b/packages/vscode-tailwindcss/tsconfig.json
@@ -2,7 +2,7 @@ {
   "compilerOptions": {
     "module": "commonjs",
     "target": "es6",
-    "lib": ["ES2020"],
+    "lib": ["ES2019"],
     "rootDir": "..",
     "sourceMap": true,
     "moduleResolution": "node",