diff --git a/requirements.txt b/requirements.txt
old mode 100755
new mode 100644
index 8830c69..7ecf535
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,9 @@
-Flask==2.2.2
-Werkzeug==2.2.2
+Flask==2.2.5
+Werkzeug==3.0.3
 mammoth==1.4.2
 python-pptx==0.6.21
 PyMuPDF==1.24.5
-Jinja2==3.1.2
+Jinja2==3.1.4
 nbformat==5.5.0
+pillow>=10.3.0 # not directly required, pinned by Snyk to avoid a vulnerability
+zipp>=3.19.1 # not directly required, pinned by Snyk to avoid a vulnerability