diff --git a/.github/workflows/flask.yml b/.github/workflows/flask.yml
index 43fbe8e7..0c801216 100644
--- a/.github/workflows/flask.yml
+++ b/.github/workflows/flask.yml
@@ -47,7 +47,7 @@ jobs:
         sudo apt-get update -qy
         sudo apt-get -y install postgresql-client --no-install-recommends
         python -m pip install --upgrade pip
-        pip install flake8 pytest coverage
+        pip install -r requirements-dev.txt
         pip install -r requirements.txt
 
     - name: Prepare database
diff --git a/.github/workflows/selenium.yml b/.github/workflows/selenium.yml
index f9209484..fab0faab 100644
--- a/.github/workflows/selenium.yml
+++ b/.github/workflows/selenium.yml
@@ -47,7 +47,7 @@ jobs:
         sudo apt-get update -qy
         sudo apt-get -y install postgresql-client --no-install-recommends
         python -m pip install --upgrade pip
-        pip install flake8 pytest coverage
+        pip install -r requirements-dev.txt
         pip install -r requirements.txt
         pip install -e .
         mkdir bin
diff --git a/examples/app.py b/examples/app.py
index 3a6a25a6..47671ec9 100644
--- a/examples/app.py
+++ b/examples/app.py
@@ -3,11 +3,8 @@ Example app with minimal configuration.
 
 Use this as a starting point.
 """
-import sentry_sdk
-from decouple import config
 
-# from flask_wtf.csrf import CSRFProtect
-from sentry_sdk.integrations.flask import FlaskIntegration
+from decouple import config
 
 from ereuse_devicehub.api.views import api
 from ereuse_devicehub.config import DevicehubConfig
@@ -17,11 +14,17 @@ from ereuse_devicehub.labels.views import labels
 from ereuse_devicehub.views import core
 from ereuse_devicehub.workbench.views import workbench
 
+# from flask_wtf.csrf import CSRFProtect
+
+
 # from werkzeug.contrib.profiler import ProfilerMiddleware
 
 
 SENTRY_DSN = config('SENTRY_DSN', None)
 if SENTRY_DSN:
+    import sentry_sdk
+    from sentry_sdk.integrations.flask import FlaskIntegration
+
     sentry_sdk.init(
         dsn=SENTRY_DSN,
         integrations=[
diff --git a/requirements-dev.txt b/requirements-dev.txt
index 02778f7d..c7110e32 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,4 +1,7 @@
 black
+coverage
 isort
 flake8
 pre-commit
+pytest
+selenium==4.1.5
diff --git a/requirements-prod.txt b/requirements-prod.txt
new file mode 100644
index 00000000..50a04d5d
--- /dev/null
+++ b/requirements-prod.txt
@@ -0,0 +1,2 @@
+sentry_sdk==1.6.0
+blinker==1.4
diff --git a/requirements.txt b/requirements.txt
index 91d7e79a..8ec1e0a4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -42,15 +42,12 @@ sortedcontainers==2.1.0
 tqdm==4.32.2
 python-decouple==3.3
 python-dotenv==0.14.0
-selenium==4.1.5
 pyjwt==2.4.0
 pint==0.9
 py-dmidecode==0.1.0
 pandas==1.3.5
-numpy==1.21.6
-odfpy==1.4.1
-xlrd==2.0.1
-openpyxl==3.0.10
-et_xmlfile==1.1.0
-sentry_sdk==1.6.0
-blinker==1.4
+numpy==1.22.0   # pandas dependency
+odfpy==1.4.1   # pandas dependency
+xlrd==2.0.1   # pandas dependency
+openpyxl==3.0.10   # pandas dependency
+et_xmlfile==1.1.0   # pandas dependency