diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index b5907aa..8ea205b 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -28,5 +28,6 @@ jobs:
         run: |
           python -m pip install --upgrade pip
           pip install -r requirements.github_actions.txt
+          pip install .
       - name: Run Pytest
         run: pytest
diff --git a/skycalc_ipy/ui.py b/skycalc_ipy/ui.py
index 9bcfdb5..35d1584 100644
--- a/skycalc_ipy/ui.py
+++ b/skycalc_ipy/ui.py
@@ -8,6 +8,7 @@
 
 from astropy import units as u
 from astropy.io import fits
+from yaml import Loader
 
 from .core import AlmanacQuery, SkyModel
 
@@ -216,9 +217,9 @@ def load_yaml(ipt_str):
 
         with open(ipt_str, "r") as fd:
             fd = "\n".join(fd.readlines())
-        opts_dict = yaml.load(fd)
+        opts_dict = yaml.load(fd, Loader=yaml.FullLoader)
     else:
-        opts_dict = yaml.load(ipt_str)
+        opts_dict = yaml.load(ipt_str, Loader=yaml.FullLoader)
 
     return opts_dict