diff --git a/.github/workflows/pytest.yaml b/.github/workflows/pytest.yaml
index 7076c43..1568b92 100644
--- a/.github/workflows/pytest.yaml
+++ b/.github/workflows/pytest.yaml
@@ -16,6 +16,9 @@ jobs:
         pip install pipenv codecov
         pip install -r requirements.txt
         pipenv install --dev
+    - name: gunzip data
+      run: |
+        gunzip tests/test_data/*.gz
     - name: Test with pytest
       run: |
         pytest -vv --cov . --cov scripts/ --cov utils/
\ No newline at end of file
diff --git a/tests/test_data/GCF_000001405.25_GRCh37.p13_genomic.gff.gz b/tests/test_data/GCF_000001405.25_GRCh37.p13_genomic.gff.gz
new file mode 100644
index 0000000..eaade63
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diff --git a/tests/test_data/refseq_gff_preprocessed.pkl.gz b/tests/test_data/refseq_gff_preprocessed.pkl.gz
new file mode 100644
index 0000000..bd9f83d
Binary files /dev/null and b/tests/test_data/refseq_gff_preprocessed.pkl.gz differ