diff --git a/.github/workflows/artifacts.yml b/.github/workflows/artifacts.yml
index 4fa8bb04..faebdb74 100644
--- a/.github/workflows/artifacts.yml
+++ b/.github/workflows/artifacts.yml
@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           fetch-depth: 0
 
diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 4735b1bf..da74ea84 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -7,7 +7,7 @@ jobs:
       targets: ${{ steps.set-targets.outputs.targets }}
     steps:
     - name: Checkout
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
     - id: set-targets
       run: echo "targets=[$(grep -r "\[env:" targets | sed 's/.*://' | sed s/.$// | egrep "UART" | tr '\n' ',' | sed 's/,$/"\n/' | sed 's/,/","/'g | sed 's/^/"/')]" >> $GITHUB_OUTPUT
 
@@ -24,15 +24,15 @@ jobs:
       uses: rlespinasse/github-slug-action@v4
 
     - name: Checkout
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
 
     - name: Set up Python
-      uses: actions/setup-python@v4
+      uses: actions/setup-python@v5
       with:
         python-version: '3.10'
 
     - name: Cache pip
-      uses: actions/cache@v3
+      uses: actions/cache@v4
       with:
         path: ~/.cache/pip
         key: ${{ runner.os }}-pip-${{ matrix.target }}
@@ -44,7 +44,7 @@ jobs:
         pip install wheel
 
     - name: Cache PlatformIO
-      uses: actions/cache@v3
+      uses: actions/cache@v4
       with:
         path: ~/.platformio
         key: ${{ runner.os }}-platformio
@@ -59,9 +59,9 @@ jobs:
         cp -r hardware ~/artifacts/firmware
 
     - name: Store Artifacts
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
-        name: firmware
+        name: temp-${{ matrix.target }}
         path: |
           ~/artifacts/**/*.bin
           ~/artifacts/**/*.json
@@ -72,20 +72,20 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           fetch-depth: 0
 
       - name: Set up Python
-        uses: actions/setup-python@v4
+        uses: actions/setup-python@v5
         with:
           python-version: '3.10'
 
       - name: Get firmware artifacts
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4
         with:
-          name: firmware
           path: dist
+          merge-multiple: true
 
       - name: Build flasher "binary" with shiv
         run: |
@@ -94,7 +94,7 @@ jobs:
           shiv -c flash -o ../dist/firmware/flasher.pyz pyserial .
 
       - name: Update firmware artifact
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: firmware
           path: dist/**/*