Two more fixes
diff --git a/docs/contributing.rst b/docs/contributing.rst
index 8e5b1ce..97f31e0 100644
--- a/docs/contributing.rst
+++ b/docs/contributing.rst
@@ -132,7 +132,7 @@
 * When giving prescriptive advice, always provide references and supporting
   material.
 * When there is real disagreement between cryptographic experts, represent both
-  sides of the argument and describe the tradeoffs clearly.
+  sides of the argument and describe the trade-offs clearly.
 
 When documenting a new module in the ``hazmat`` package, its documentation
 should begin with the "Hazardous Materials" warning:
diff --git a/docs/security.rst b/docs/security.rst
index 36c8e0f..8895970 100644
--- a/docs/security.rst
+++ b/docs/security.rst
@@ -5,7 +5,7 @@
 identified a security issue in it, please report it to
 ``alex.gaynor@gmail.com``. Message may be encrypted with PGP using key
 fingerprint ``E27D 4AA0 1651 72CB C5D2  AF2B 125F 5C67 DFE9 4084`` (this public
-key is available from most commonly-used keyservers).
+key is available from most commonly-used key servers).
 
 Once you’ve submitted an issue via email, you should receive an acknowledgment
 within 48 hours, and depending on the action to be taken, you may receive