diff --git a/ITM_To_GPX/packages.config b/ITM_To_GPX/packages.config
index 948bc60..8803282 100644
--- a/ITM_To_GPX/packages.config
+++ b/ITM_To_GPX/packages.config
@@ -1,4 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="SharpZipLib" version="0.86.0" targetFramework="net461" />
+  <package id="SharpZipLib" version="1.3.3" targetFramework="net461" />
 </packages>
\ No newline at end of file