diff --git a/.github/workflows/joss-pdf.yml b/.github/workflows/joss-pdf.yml
index 02e8c8b..aa0626d 100644
--- a/.github/workflows/joss-pdf.yml
+++ b/.github/workflows/joss-pdf.yml
@@ -14,7 +14,7 @@ jobs:
           # This should be the path to the paper within your repo.
           paper-path: docs/paper/paper.md
       - name: Upload
-        uses: actions/upload-artifact@v1
+        uses: actions/upload-artifact@v4
         with:
           name: paper
           # This is the output path where Pandoc will write the compiled
diff --git a/pyproject.toml b/pyproject.toml
index 4b4fb46..9e8f65f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -5,7 +5,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "checkpoint_schedules"
-version = "1.0.3"
+version = "1.0.4"
 authors = [
   { name="Daiane I. Dolci ", email="d.dolci@eimperial.ic.ac.uk" },
   { name="James R. Maddison", email="j.r.maddison@ed.ac.uk" },