diff --git a/.changeset/wet-hotels-bow.md b/.changeset/wet-hotels-bow.md
new file mode 100644
index 00000000..405ad920
--- /dev/null
+++ b/.changeset/wet-hotels-bow.md
@@ -0,0 +1,5 @@
+---
+"@slashid/react": patch
+---
+
+Normalise the email before validation
diff --git a/packages/react/src/components/form/authenticating/validation.test.ts b/packages/react/src/components/form/authenticating/validation.test.ts
index 4a7fa1f5..1327eb7a 100644
--- a/packages/react/src/components/form/authenticating/validation.test.ts
+++ b/packages/react/src/components/form/authenticating/validation.test.ts
@@ -102,4 +102,9 @@ describe.concurrent("validation tests", () => {
   it("should be invalid phone number", () => {
     expect(isValidPhoneNumber("")).toBe(false);
   });
+
+  it("should allow mixed case", () => {
+    expect(isValidEmail("JEssica.e@h.com")).toBe(true);
+    expect(isValidEmail("Jessica.E@h.com")).toBe(true);
+  });
 });
diff --git a/packages/react/src/components/form/authenticating/validation.ts b/packages/react/src/components/form/authenticating/validation.ts
index 334a94f2..93f094a7 100644
--- a/packages/react/src/components/form/authenticating/validation.ts
+++ b/packages/react/src/components/form/authenticating/validation.ts
@@ -22,7 +22,7 @@ export const isValidEmail: ValidatorFn<string> = (value) => {
     return false;
   }
 
-  return EMAIL_REGEX.test(value);
+  return EMAIL_REGEX.test(value.toLowerCase());
 };
 
 export const isValidUsername: ValidatorFn<string> = (value) => {