add a missing word (#3600)

diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index c212bb5..697ac43 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -14,7 +14,7 @@
   :class:`~cryptography.exceptions.InvalidSignature` was raised.
 * **BACKWARDS INCOMPATIBLE:** Dropped support for macOS 10.7 and 10.8.
 * **BACKWARDS INCOMPATIBLE:** The minimum supported PyPy version is now 5.3.
-* Python 3.3 support has been deprecated, and will be removed in the
+* Python 3.3 support has been deprecated, and will be removed in the next
   ``cryptography`` release.
 * Add support for providing ``tag`` during
   :class:`~cryptography.hazmat.primitives.ciphers.modes.GCM` finalization via