diff --git a/README b/README
index 96dfa09eb..360d62707 100644
--- a/README
+++ b/README
@@ -8,7 +8,7 @@ Quickstart guide
 To compile ejabberd you need:
  - GNU Make
  - GCC
- - Erlang/OTP R12B-4 or higher, R13B or higher.
+ - Erlang/OTP R12B-5 or higher.
  - exmpp 0.9.3 or higher
  - OpenSSL 0.9.8 or higher, for STARTTLS, SASL and SSL encryption.
  - Zlib 1.2.3 or higher, for Stream Compression support
diff --git a/doc/guide.html b/doc/guide.html
index 4b036f02c..2f65e636c 100644
--- a/doc/guide.html
+++ b/doc/guide.html
@@ -343,7 +343,7 @@ as long as your system have all the dependencies.</P><P> <A NAME="installreq"></
 </P><UL CLASS="itemize"><LI CLASS="li-itemize">
 GNU Make
 </LI><LI CLASS="li-itemize">GCC
-</LI><LI CLASS="li-itemize">Erlang/OTP R12B-4 or higher, R13B or higher.
+</LI><LI CLASS="li-itemize">Erlang/OTP R12B-5 or higher.
 </LI><LI CLASS="li-itemize">exmpp 0.9.3 or higher
 </LI><LI CLASS="li-itemize">OpenSSL 0.9.8 or higher, for STARTTLS, SASL and SSL encryption.
 </LI><LI CLASS="li-itemize">Zlib 1.2.3 or higher, for Stream Compression support (<A HREF="http://xmpp.org/extensions/xep-0138.html">XEP-0138</A>). Optional.
diff --git a/doc/guide.tex b/doc/guide.tex
index 95ad04a77..609abc5ca 100644
--- a/doc/guide.tex
+++ b/doc/guide.tex
@@ -309,7 +309,7 @@ To compile \ejabberd{} on a `Unix-like' operating system, you need:
 \begin{itemize}
 \item GNU Make
 \item GCC
-\item Erlang/OTP R12B-4 or higher, R13B or higher.
+\item Erlang/OTP R12B-5 or higher.
 \item exmpp 0.9.3 or higher
 \item OpenSSL 0.9.8 or higher, for STARTTLS, SASL and SSL encryption.
 \item Zlib 1.2.3 or higher, for Stream Compression support (\xepref{0138}). Optional.