diff --git a/tex/10-preamble.tex b/tex/10-preamble.tex
index 20a278d..88e278c 100644
--- a/tex/10-preamble.tex
+++ b/tex/10-preamble.tex
@@ -33,11 +33,7 @@ citecolor=black, menucolor=black, filecolor=black,
 \geometry{left=30mm}
 
 
-% Пакет Tikz
-\usepackage{tikz}
-\usetikzlibrary{arrows,positioning,shadows}
 
 % Произвольная нумерация списков.
 \usepackage{enumerate}
 
-ч
\ No newline at end of file