diff --git a/TODO.md b/TODO.md
index 779a15a..2f43e1a 100644
--- a/TODO.md
+++ b/TODO.md
@@ -13,7 +13,7 @@
 
 * Refactor Algorithm logic with set Exceptions to return
 * Add HTML documentation
-* Implement ECSDA signing
+* Implement ECDSA signing
 * Refactor JWT claims verification
 * Add actual exceptions instead of using the base exception
 * Audit JWT claims tests and rectify against the spec