diff --git a/docs/workshop/5-snake-oil-crypto/soc.pdf b/docs/workshop/5-snake-oil-crypto/soc.pdf
index ff87861..fd07256 100644
Binary files a/docs/workshop/5-snake-oil-crypto/soc.pdf and b/docs/workshop/5-snake-oil-crypto/soc.pdf differ
diff --git a/docs/workshop/5-snake-oil-crypto/soc.tex b/docs/workshop/5-snake-oil-crypto/soc.tex
index 9a0daa1..148836b 100644
--- a/docs/workshop/5-snake-oil-crypto/soc.tex
+++ b/docs/workshop/5-snake-oil-crypto/soc.tex
@@ -13,7 +13,7 @@
 \title{Snake Oil Crypto:}
 \subtitle{Performing crypto sanity checks with D4 project.}
 \author{Jean-Louis huynen}
-\titlegraphic{\includegraphics[scale=0.20]{d4-logo.pdf}}
+\titlegraphic{\includegraphics[scale=0.20]{../../logos/d4-logo.pdf}}
 \institute{Team CIRCL \\ \url{https://www.d4-project.org/}}
 \date{2019/11/25}