diff --git a/README b/README
index 6284aba..3fb02ea 100644
--- a/README
+++ b/README
@@ -12,6 +12,11 @@ certificate stores. Additionally, any local certificates stored in
 /etc/ssl/local will also be imported into the system trust anchors and
 certificate stores making it a full trust management utiltiy.
 
+The make-ca script depends on OpenSSL-1.1.0, P11-Kit-0.23, and optionally,
+NSS-3.23 (for the MozTrust exetension). Additionally, Coreutils, gawk, and sed
+are used. The default locations for output files can be tailored for your
+environment via the /etc/make-ca.conf configuration file.
+
 As of version 1.2, a p11-kit helper, copy-trust-modifications, is included
 for use in p11-kit's trust-extract-compat script (which should be symlinked
 to the user's path as update-ca-certificates). Manual creation of OpenSSL