diff --git a/specification/ch_1.xml b/specification/ch_1.xml
index 5471be6..a5fc979 100644
--- a/specification/ch_1.xml
+++ b/specification/ch_1.xml
@@ -66,7 +66,7 @@
     <itemizedlist>
       <listitem>
         <para>
-        <emphasis>Power Instruction Set Architecture,</emphasis> Versions 2.7
+        <emphasis>Power Instruction Set Architecture,</emphasis> Versions 2.07
 	and 3.0, IBM, 2013-2016. 
         <emphasis>
           <link xl:href="http://www.power.org">http://www.power.org
diff --git a/specification/ch_2.xml b/specification/ch_2.xml
index a43d745..807b481 100644
--- a/specification/ch_2.xml
+++ b/specification/ch_2.xml
@@ -20,7 +20,7 @@ xml:id="dbdoclet.50655240_pgfId-1156194">
     64-bit features to implement the ELF ABI version 2.</para>
     <section xml:id="dbdoclet.50655240___RefHeading___Toc377640572">
       <title>Processor Architecture</title>
-      <para>This ABI is predicated on, at a minimum, Power ISA version 2.7 and
+      <para>This ABI is predicated on, at a minimum, Power ISA version 2.07 and
       contains additional implementation characteristics.</para>
       <para>All OpenPOWER instructions that are defined by the Power
       Architecture can be assumed to be implemented and to work as specified.