diff --git a/realanal.tex b/realanal.tex
index 265c5b9..2068b00 100644
--- a/realanal.tex
+++ b/realanal.tex
@@ -350,8 +350,8 @@
 by Ji{\v r}\'i Lebl\\[3ex]} 
 \today
 \\
-(version 5.3)
-% --- 5th edition, 3rd update)
+(version 5.4)
+% --- 5th edition, 4th update)
 \end{minipage}}
 
 %\addtolength{\textwidth}{\centeroffset}
diff --git a/realanal12.tex b/realanal12.tex
index f80fa17..23a5eb7 100644
--- a/realanal12.tex
+++ b/realanal12.tex
@@ -396,7 +396,7 @@
 %mbx       </shortlicense>
 %mbx     </copyright>
 %mbx     <p>
-%mbx        Version 5.3 (volume I) and 2.3 (volume II)
+%mbx        Version 5.4 (volume I) and 2.4 (volume II)
 %mbx     </p>
 %mbx     <p>
 %mbx       You can use, print, duplicate, share this book as much as you want.  You can
@@ -453,8 +453,9 @@
 by Ji{\v r}\'i Lebl\\[3ex]} 
 \today
 \\
-(version 5.3 and 2.3)
-% --- 5th edition, 2nd update)
+(version 5.4 and 2.4)
+% --- 5th edition, 4th update)
+% --- 2nd edition, 4th update)
 \end{minipage}}
 
 %\addtolength{\textwidth}{\centeroffset}
diff --git a/realanal2.tex b/realanal2.tex
index ffa632e..ba3629e 100644
--- a/realanal2.tex
+++ b/realanal2.tex
@@ -387,8 +387,8 @@
 by Ji{\v r}\'i Lebl\\[3ex]} 
 \today
 \\
-(version 2.3)
-% --- 2nd edition, 3rd update)
+(version 2.4)
+% --- 2nd edition, 4th update)
 \end{minipage}}
 
 %\addtolength{\textwidth}{\centeroffset}