diff --git a/dist/emotion-react.browser.cjs.js b/dist/emotion-react.browser.cjs.js
index b688583..063ad1a 100644
--- a/dist/emotion-react.browser.cjs.js
+++ b/dist/emotion-react.browser.cjs.js
@@ -318,7 +318,7 @@ if (process.env.NODE_ENV !== 'production') {
   var isJest = typeof jest !== 'undefined';
 
   if (isBrowser && !isJest) {
-    var globalContext = isBrowser ? window : global;
+    var globalContext = isBrowser ? globalThis : global;
     var globalKey = "__EMOTION_REACT_" + pkg.version.split('.')[0] + "__";
 
     if (globalContext[globalKey]) {
diff --git a/dist/emotion-react.browser.esm.js b/dist/emotion-react.browser.esm.js
index e0382e7..f3b93ff 100644
--- a/dist/emotion-react.browser.esm.js
+++ b/dist/emotion-react.browser.esm.js
@@ -315,7 +315,7 @@ if (process.env.NODE_ENV !== 'production') {
   var isJest = typeof jest !== 'undefined';
 
   if (isBrowser && !isJest) {
-    var globalContext = isBrowser ? window : global;
+    var globalContext = isBrowser ? globalThis : global;
     var globalKey = "__EMOTION_REACT_" + pkg.version.split('.')[0] + "__";
 
     if (globalContext[globalKey]) {
diff --git a/dist/emotion-react.cjs.dev.js b/dist/emotion-react.cjs.dev.js
index ab7e485..b72e5cb 100644
--- a/dist/emotion-react.cjs.dev.js
+++ b/dist/emotion-react.cjs.dev.js
@@ -366,7 +366,7 @@ if (process.env.NODE_ENV !== 'production') {
   var isJest = typeof jest !== 'undefined';
 
   if (isBrowser && !isJest) {
-    var globalContext = isBrowser ? window : global;
+    var globalContext = isBrowser ? globalThis : global;
     var globalKey = "__EMOTION_REACT_" + pkg.version.split('.')[0] + "__";
 
     if (globalContext[globalKey]) {
diff --git a/dist/emotion-react.esm.js b/dist/emotion-react.esm.js
index 2fe6811..8d814de 100644
--- a/dist/emotion-react.esm.js
+++ b/dist/emotion-react.esm.js
@@ -363,7 +363,7 @@ if (process.env.NODE_ENV !== 'production') {
   var isJest = typeof jest !== 'undefined';
 
   if (isBrowser && !isJest) {
-    var globalContext = isBrowser ? window : global;
+    var globalContext = isBrowser ? globalThis : global;
     var globalKey = "__EMOTION_REACT_" + pkg.version.split('.')[0] + "__";
 
     if (globalContext[globalKey]) {
diff --git a/src/index.js b/src/index.js
index 7e472b6..6704bfe 100644
--- a/src/index.js
+++ b/src/index.js
@@ -15,7 +15,7 @@ if (process.env.NODE_ENV !== 'production') {
   const isJest = typeof jest !== 'undefined'
 
   if (isBrowser && !isJest) {
-    const globalContext = isBrowser ? window : global
+    const globalContext = isBrowser ? globalThis : global
     const globalKey = `__EMOTION_REACT_${pkg.version.split('.')[0]}__`
     if (globalContext[globalKey]) {
       console.warn(