diff --git a/docs/security.rst b/docs/security.rst
index 424fdb6..f937afb 100644
--- a/docs/security.rst
+++ b/docs/security.rst
@@ -9,7 +9,7 @@
 -------------------------
 
 Anytime it's possible to write code using ``cryptography``'s public API which
-does not provide the guarntees that a reasonable developer would expect it to
+does not provide the guarantees that a reasonable developer would expect it to
 based on our documentation.
 
 That's a bit academic, but basically it means the scope of what we consider a