diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 46a9cc3..0f2d6d4 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -13,7 +13,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.7", "3.9", "3.10", "3.11"]
+        python-version: ["3.8", "3.9", "3.10", "3.11"]
         runs-on: [ubuntu-latest, windows-latest, macos-latest]
 
     steps:
@@ -33,7 +33,6 @@ jobs:
         pip install .
 
     - name: Test some examples      
-      if: ${{ matrix.python-version != '3.7' || matrix.runs-on != 'macos-latest' }} # mac + py3.7 requires build of _bz2 module...
       run: |
         cd scripts 
         python gene_expression.py
@@ -42,6 +41,12 @@ jobs:
         python signalpropagation_kernels.py
         python plot_signal_propagation.py
 
+        python make_neuropeptidergic_connectome.py 
+        ls -alth
+        python pep_connectome_extract_combos.py tests/test_pep_pairs.txt 
+        more tests/*
+
+
 
     - name: Final version info
       run: |
diff --git a/.gitignore b/.gitignore
index ab06de1..45eaec8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -132,3 +132,4 @@ dmypy.json
 *.~lock*
 wormneuroatlas/drafts.py
 scripts/snippets_for_paper.py
+/scripts/tests/test_pep_pairs_pepgpcr_combos.txt
diff --git a/scripts/tests/test_pep_pairs.txt b/scripts/tests/test_pep_pairs.txt
new file mode 100644
index 0000000..8d6a6be
--- /dev/null
+++ b/scripts/tests/test_pep_pairs.txt
@@ -0,0 +1 @@
+AVAL -> RMMDR