diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 37cac74..516191f 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -1,4 +1,4 @@
-name: Unit Tests
+name: Tests
 
 on:
   push:
@@ -40,8 +40,7 @@ jobs:
       env:
         PIP_PREFER_BINARY: 1
       run: |
-        python3 -m poetry install
-        python3 -m poetry show virtualenv
+        python3 -m poetry install --with=dev
 
     - name: Run doc tests
       run: |
diff --git a/pyproject.toml b/pyproject.toml
index 44232c8..7c209bf 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -24,7 +24,7 @@ skyfield = "^1.21"
 skyfield-data = ">=3,<6"
 python-dateutil = "^2.8"
 
-[tool.poetry.dev-dependencies]
+[tool.poetry.group.dev.dependencies]
 black = "^23.1"
 parameterized = "^0.9.0"
 coverage = "^6.1.2"