diff --git a/package.json b/package.json
index efa9dd5..8b3fade 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "http2-wrapper",
-	"version": "2.1.6",
+	"version": "2.1.7",
 	"description": "HTTP2 client, just with the familiar `https` API",
 	"main": "source",
 	"types": "index.d.ts",
diff --git a/source/client-request.js b/source/client-request.js
index 512ab22..b5cd925 100644
--- a/source/client-request.js
+++ b/source/client-request.js
@@ -503,7 +503,7 @@ class ClientRequest extends Writable {
 		const lowercased = name.toLowerCase();
 
 		if (lowercased === 'connection') {
-			if (value === 'keep-alive') {
+			if (value.toLowerCase() === 'keep-alive') {
 				return;
 			}
 
diff --git a/test/request.js b/test/request.js
index 8116196..32fb533 100644
--- a/test/request.js
+++ b/test/request.js
@@ -1047,6 +1047,21 @@ test('does not throw on connection: keep-alive header', wrapper, async (t, serve
 	t.false('connection' in headers);
 });
 
+test('does not throw on connection: keep-alive header (uppercase)', wrapper, async (t, server) => {
+	const request = makeRequest(server.url, {
+		headers: {
+			connection: 'KEEP-ALIVE'
+		}
+	});
+	request.end();
+
+	const response = await pEvent(request, 'response');
+	const body = await getStream(response);
+	const {headers} = JSON.parse(body);
+
+	t.false('connection' in headers);
+});
+
 test('throws on connection: close header', wrapper, async (t, server) => {
 	t.throws(() => makeRequest(server.url, {
 		headers: {