diff --git a/ci/requirements-py36.yml b/ci/requirements-py36.yml
index 7738d6d..8f1e10a 100644
--- a/ci/requirements-py36.yml
+++ b/ci/requirements-py36.yml
@@ -12,7 +12,6 @@ dependencies:
     - pvlib
     - plotly
     - ephem
-    - openpyxl
     - sqlalchemy
     - pip:
         - coveralls
\ No newline at end of file
diff --git a/ci/requirements-py37.yml b/ci/requirements-py37.yml
index 9bf6d4e..d3262df 100644
--- a/ci/requirements-py37.yml
+++ b/ci/requirements-py37.yml
@@ -12,7 +12,6 @@ dependencies:
     - pvlib
     - plotly
     - ephem
-    - openpyxl
     - sqlalchemy
     - pip:
         - coveralls
\ No newline at end of file
diff --git a/ci/requirements-py38.yml b/ci/requirements-py38.yml
index b089cb8..39a8c03 100644
--- a/ci/requirements-py38.yml
+++ b/ci/requirements-py38.yml
@@ -12,7 +12,6 @@ dependencies:
     - pvlib
     - plotly
     - ephem
-    - openpyxl
     - sqlalchemy
     - pip:
         - coveralls
\ No newline at end of file