diff --git a/L-System/packages.config b/L-System/packages.config
index ac971f6..d5f46d2 100644
--- a/L-System/packages.config
+++ b/L-System/packages.config
@@ -1,4 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="System.Text.RegularExpressions" version="4.3.0" targetFramework="net461" />
+  <package id="System.Text.RegularExpressions" version="4.3.1" targetFramework="net461" />
 </packages>
\ No newline at end of file