diff --git a/pip-sample/requirements.txt b/pip-sample/requirements.txt
index 680d0816..602ba5bb 100644
--- a/pip-sample/requirements.txt
+++ b/pip-sample/requirements.txt
@@ -21,7 +21,7 @@ Jinja2==2.10
 jsonschema==2.6.0
 jupyter==1.0.0
 jupyter-client==5.2.3
-jupyter-core==4.4.0
+jupyter-core==4.11.2
 kiwisolver==1.0.1
 MarkupSafe==1.0
 matplotlib==2.2.2
@@ -38,7 +38,7 @@ parso==0.3.1
 pexpect==4.6.0
 pickleshare==0.7.5
 prometheus-client==0.3.1
-protobuf==3.6.1
+protobuf==3.18.3
 protobuf-to-dict==0.1.0
 ptyprocess==0.6.0
 Pygments==2.2.0
@@ -65,3 +65,4 @@ webencodings==0.5.1
 Werkzeug==0.14.1
 widgetsnbextension==3.4.2
 xlrd==1.1.0
+setuptools>=65.5.1 # not directly required, pinned by Snyk to avoid a vulnerability