diff --git a/src/transport/receiver.ts b/src/transport/receiver.ts
index 15c1867..48fcd1d 100644
--- a/src/transport/receiver.ts
+++ b/src/transport/receiver.ts
@@ -1,4 +1,4 @@
-import { Headers } from "./http/headers";
+import { Headers, sanitize } from "./http/headers";
 import { CloudEvent, Version, ValidationError } from "..";
 import { BinaryHTTPReceiver as BinaryReceiver } from "./http/binary_receiver";
 import { StructuredHTTPReceiver as StructuredReceiver } from "./http/structured_receiver";
@@ -60,8 +60,9 @@ export class Receiver {
    * @return {CloudEvent} A new {CloudEvent} instance
    */
   accept(headers: Headers, body: string | Record<string, unknown> | CloudEventV1 | CloudEventV03): CloudEvent {
-    const mode: Mode = getMode(headers);
-    const version = getVersion(mode, headers, body);
+    const cleanHeaders: Headers = sanitize(headers);
+    const mode: Mode = getMode(cleanHeaders);
+    const version = getVersion(mode, cleanHeaders, body);
     switch (version) {
       case Version.V1:
         return this.receivers.v1[mode].parse(body, headers);
diff --git a/test/http_receiver_test.ts b/test/http_receiver_test.ts
index 1c21c39..b21a049 100644
--- a/test/http_receiver_test.ts
+++ b/test/http_receiver_test.ts
@@ -52,6 +52,35 @@ describe("HTTP Transport Binding Receiver for CloudEvents", () => {
       expect(typeof event.data).to.equal("object");
       expect((event.data as Record<string, string>).lunch).to.equal("sushi");
     });
+
+    it("Recognizes headers in title case for binary events", () => {
+      const binaryHeaders = {
+        "Content-Type": "application/json; charset=utf-8",
+        "ce-specversion": specversion,
+        "ce-id": id,
+        "ce-type": type,
+        "ce-source": source,
+      };
+
+      const event: CloudEvent = receiver.accept(binaryHeaders, data);
+      expect(event.validate()).to.be.true;
+      expect((event.data as Record<string, string>).lunch).to.equal("sushi");
+    });
+
+    it("Recognizes headers in title case for structured events", () => {
+      const structuredHeaders = { "Content-Type": "application/cloudevents+json" };
+      const payload = {
+        id,
+        type,
+        source,
+        data,
+        specversion,
+      };
+
+      const event: CloudEvent = receiver.accept(structuredHeaders, payload);
+      expect(event.validate()).to.be.true;
+      expect((event.data as Record<string, string>).lunch).to.equal("sushi");
+    });
   });
 
   describe("V1", () => {