Formally deprecated support for OpenSSL 0.9.8
diff --git a/docs/installation.rst b/docs/installation.rst
index f9d2261..1804989 100644
--- a/docs/installation.rst
+++ b/docs/installation.rst
@@ -39,8 +39,8 @@
 
 .. warning::
     OpenSSL versions 0.9.8 and 1.0.0 are no longer supported by the OpenSSL
-    project. A future version of cryptography will drop support for these
-    releases.
+    project. Support for OpenSSL 0.9.8 will be removed in the next
+    ``cryptography`` release.
 
 On Windows
 ----------