diff --git a/doc/manual/installation.xml b/doc/manual/installation.xml
index 2d71107c5..491d044cd 100644
--- a/doc/manual/installation.xml
+++ b/doc/manual/installation.xml
@@ -67,7 +67,7 @@ these packages.  Alternatively, if you already have them installed,
 you can use <command>configure</command>'s <option>--with-bdb</option>
 and <option>--with-aterm</option> options to point to their respective
 locations.  Note that Berkeley DB <emphasis>must</emphasis> be version
-4.3; other versions may not have compatible database formats.</para>
+4.4; other versions may not have compatible database formats.</para>
 
 </sect1>
 
diff --git a/src/nix-env/help.txt b/src/nix-env/help.txt
index 6ca5b3a3b..72fc4f13e 100644
--- a/src/nix-env/help.txt
+++ b/src/nix-env/help.txt
@@ -30,8 +30,8 @@ Install / upgrade / uninstall flags:
 
 Upgrade flags:
 
-  --lt: upgrade unless the current version is older (default)
-  --leq: upgrade unless the current version is older or current
+  --lt: upgrade if the current version is older (default)
+  --leq: upgrade if the current version is older or current
   --always: upgrade regardless of current version
 
 Query types: