diff --git a/.github/workflows/workflow.yml b/.github/workflows/workflow.yml
index 53671c16..d38b62b4 100644
--- a/.github/workflows/workflow.yml
+++ b/.github/workflows/workflow.yml
@@ -15,7 +15,7 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        pip install -r requirements.txt
+        pip install -r requirements-dev.txt
     - name: Install nwbwidgets
       run: |
         pip install -e .
diff --git a/requirements-dev.txt b/requirements-dev.txt
new file mode 100644
index 00000000..55fcfcfb
--- /dev/null
+++ b/requirements-dev.txt
@@ -0,0 +1,11 @@
+pynwb
+ipympl
+ipywidgets
+matplotlib
+numpy
+ipyvolume
+ndx_grayscalevolume
+plotly
+tqdm>=4.36.0
+ndx-spectrum
+aiohttp
\ No newline at end of file
diff --git a/test/test_ecephys.py b/test/test_ecephys.py
index 6b7faa45..462bc60a 100644
--- a/test/test_ecephys.py
+++ b/test/test_ecephys.py
@@ -8,7 +8,7 @@
 from pynwb import TimeSeries
 from pynwb.ecephys import SpikeEventSeries, ElectricalSeries, LFP
 
-from nwbwidgets.ecephys import show_spectrogram, show_spike_event_series
+from nwbwidgets.ecephys import show_spectrogram, show_spike_event_series, show_ccf
 from nwbwidgets.view import default_neurodata_vis_spec
 from nwbwidgets.base import show_multi_container_interface
 from nwbwidgets import nwb2widget
@@ -105,3 +105,7 @@ def test_show_spectrogram():
 
     channel = 3
     show_spectrogram(ts, channel=channel)
+
+
+def test_show_ccf():
+    show_ccf()