diff --git a/.github/workflows/verify-docs.yml b/.github/workflows/verify-docs.yml
index 082636d1..0b25675d 100644
--- a/.github/workflows/verify-docs.yml
+++ b/.github/workflows/verify-docs.yml
@@ -1,8 +1,5 @@
 name: verify mkdocs build
-on:
-  pull_request:
-    branches:
-      - master
+on: [pull_request]
 jobs:
   verify-docs:
     name: Verify docs
@@ -19,11 +16,5 @@ jobs:
           pip install -r requirements.txt
           pip install -r requirements-dev.txt
           pip install -e .
-      - name: Install mkdocs dependencies
-        run: |
-          pip install --upgrade pip
-          pip install mkdocs
-          pip install mkdocstrings
-          pip install mkdocs-material
       - name: Build site
         run: mkdocs build --strict
diff --git a/cellengine/resources/scaleset.py b/cellengine/resources/scaleset.py
index 7c48d8ca..72789974 100644
--- a/cellengine/resources/scaleset.py
+++ b/cellengine/resources/scaleset.py
@@ -72,11 +72,11 @@ def apply(
         """Apply the scaleset to a file.
 
         Args:
-            file (_id or FcsFile): The file to which this scaleset will be
+            file: The file to which this scaleset will be
                 applied.
-            clamp_q (bool): Clamp the output to the scale's minimum and maximum
+            clamp_q: Clamp the output to the scale's minimum and maximum
                 values.
-            in_place (bool): If True, updates the FcsFile.events; if
+            in_place: If True, updates the FcsFile.events; if
                 False, returns a DataFrame
         """
         if isinstance(file, str):
diff --git a/requirements-dev.txt b/requirements-dev.txt
index 173ebf53..0e6a779f 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -5,7 +5,7 @@ responses~=0.10
 flake8~=3.7
 black~=22.3
 Pillow~=9.0
-mkdocs~=1.1
+mkdocs~=1.3
 mkdocs-material~=7.3
 mkdocs-material-extensions~=1.0
-mkdocstrings[python]~=0.18
+mkdocstrings[python]~=0.19