diff --git a/.github/workflows/build_wheel.yml b/.github/workflows/build_wheel.yml
index e15ab70db0..c2345af371 100644
--- a/.github/workflows/build_wheel.yml
+++ b/.github/workflows/build_wheel.yml
@@ -51,7 +51,7 @@ jobs:
           CIBW_ARCHS_LINUX: ${{ matrix.arch }}
           CIBW_ARCHS_MACOS: ${{ matrix.arch }}
 
-      - uses: actions/upload-artifact@v3
+      - uses: actions/upload-artifact@v4
         with:
           path: './wheelhouse/sourmash*.whl'
 
@@ -79,7 +79,7 @@ jobs:
           export RUSTC_BOOTSTRAP=1
           pyodide build
 
-      - uses: actions/upload-artifact@v3
+      - uses: actions/upload-artifact@v4
         with:
           path: './dist/sourmash*.whl'
 
diff --git a/.github/workflows/build_wheel_all_archs.yml b/.github/workflows/build_wheel_all_archs.yml
index 36c04a5d2f..4e086e902d 100644
--- a/.github/workflows/build_wheel_all_archs.yml
+++ b/.github/workflows/build_wheel_all_archs.yml
@@ -39,7 +39,7 @@ jobs:
           container: 'off'
 
       - name: Upload wheels
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: wheels
           path: dist
@@ -62,7 +62,7 @@ jobs:
           sccache: 'true'
 
       - name: Upload wheels
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: wheels
           path: dist
diff --git a/.github/workflows/draft-pdf.yml b/.github/workflows/draft-pdf.yml
index be8a1643b5..47ec13e3f8 100644
--- a/.github/workflows/draft-pdf.yml
+++ b/.github/workflows/draft-pdf.yml
@@ -14,7 +14,7 @@ jobs:
           # This should be the path to the paper within your repo.
           paper-path: paper.md
       - name: Upload
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: paper
           # This is the output path where Pandoc will write the compiled
diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index afcfbf4819..ddce31eb49 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -179,7 +179,7 @@ jobs:
         working-directory: pkg
         run: npm pack
 
-      - uses: actions/upload-artifact@v3
+      - uses: actions/upload-artifact@v4
         with:
           path: 'pkg/sourmash*.tgz'