diff --git a/OBSS/OBSS-eng-v3.pdf b/OBSS/OBSS-eng-v3.pdf
index 39d26359a..3bc615f11 100644
Binary files a/OBSS/OBSS-eng-v3.pdf and b/OBSS/OBSS-eng-v3.pdf differ
diff --git a/OBSS/OBSS-eng-v3.tex b/OBSS/OBSS-eng-v3.tex
index b3e05b21e..920cca7d8 100644
--- a/OBSS/OBSS-eng-v3.tex
+++ b/OBSS/OBSS-eng-v3.tex
@@ -175,7 +175,7 @@
 
 
 \begin{document}
-\def \versione {0.87a} \fontsize{10}{12}\selectfont
+\def \versione {0.87d} \fontsize{10}{12}\selectfont
 
 \thispagestyle{empty} \tikz[remember picture,overlay]  \node[opacity=1] at (current page.center){\includegraphics[width=21cm,height=\pdfpageheight]{copertina.png}}; \begin{textblock*}{20cm}(10cm,7cm)\Huge {Old Bell School System}\\ \end{textblock*} \begin{textblock*}{22cm}(13.5cm,8cm) \Large {\textbf{(OBSS)}}\\ \end{textblock*} \begin{textblock*}{13cm}(9cm,11cm) \Huge{\color{black} \calligra\Huge{Fantasy Adventure Game}} \end{textblock*} \newpage~\thispagestyle{empty}  \newpage~\thispagestyle{empty} %deve rimanere su riga 180
 
diff --git a/OBSS/OBSS.pdf b/OBSS/OBSS.pdf
index 6ba742505..779e70156 100644
Binary files a/OBSS/OBSS.pdf and b/OBSS/OBSS.pdf differ
diff --git a/OBSS/OBSS.tex b/OBSS/OBSS.tex
index 857a0a999..25bafe170 100644
--- a/OBSS/OBSS.tex
+++ b/OBSS/OBSS.tex
@@ -175,7 +175,7 @@
 
 
 \begin{document}
-\def \versione {0.87c} \fontsize{10}{12}\selectfont
+\def \versione {0.87d} \fontsize{10}{12}\selectfont
 
 \cleardoublepage \thispagestyle{empty} \tikz[remember picture,overlay]  \node[opacity=1] at (current page.center){\includegraphics[width=21cm,height=\pdfpageheight]{copertina.png}}; \begin{textblock*}{20cm}(10cm,7cm)\Huge {Old Bell School System}\\ \end{textblock*} \begin{textblock*}{22cm}(13.5cm,8cm) \Large {\textbf{(OBSS)}}\\ \end{textblock*} \begin{textblock*}{13cm}(9cm,11cm) \Huge{\color{black} \calligra\Huge{Fantasy Adventure Game}} \end{textblock*} \newpage~\thispagestyle{empty}  \newpage~\thispagestyle{empty} %deve rimanere su riga 180 cvv.bat
 
diff --git a/OBSS/changelog.md b/OBSS/changelog.md
index 5c5c86d38..24d5df599 100644
--- a/OBSS/changelog.md
+++ b/OBSS/changelog.md
@@ -578,12 +578,16 @@ aggiornata versione POD 2024/07/24
 
 aggiornata versione POD 2024/07/25
 
-0.87b aggiornati tiri salvezza mostri, 
+0.87b aggiornati tiri salvezza mostri
 
 aggiornata versione POD 2024/07/27
 
 0.87c corretta indicazione nome solar, chiarimenti su condizioni per prova di magia, riaggiornati DC mostri
 
+aggiornata versione POD 2024/07/31
+
+0.87d
+
 
 - aggiunti \label{} fino a piani