diff --git a/.github/workflows/openlane_ci.yml b/.github/workflows/openlane_ci.yml
index 10054c52c..34b8a2b7b 100644
--- a/.github/workflows/openlane_ci.yml
+++ b/.github/workflows/openlane_ci.yml
@@ -19,7 +19,7 @@ jobs:
       matrix:
         pdk: [sky130A, gf180mcuC]
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Set up environment variables
         uses: ./.github/actions/set_env_variables
@@ -53,7 +53,7 @@ jobs:
           tar -cf /tmp/${{ matrix.pdk }}.tar -C $PDK_ROOT/${{ matrix.pdk }} .
 
       - name: Upload PDK Tarball
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: pdk-tarball-${{ matrix.pdk }}
           path: /tmp/${{ matrix.pdk }}.tar
@@ -64,7 +64,7 @@ jobs:
       design_matrix: ${{ steps.set-matrix.outputs.design_matrix }}
       issue_regression_matrix: ${{ steps.set-matrix.outputs.issue_regression_matrix }}
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0
       - name: Python Dependencies
@@ -88,7 +88,7 @@ jobs:
     name: Docker Build (amd64)
     runs-on: ubuntu-20.04
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Build
         uses: ./.github/actions/docker_build
         with:
@@ -100,7 +100,7 @@ jobs:
     name: Docker Build (arm64v8)
     runs-on: ubuntu-20.04
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Build
         uses: ./.github/actions/docker_build
         with:
@@ -116,7 +116,7 @@ jobs:
       fail-fast: false
       matrix: ${{ fromJSON(needs.prepare_test_matrices.outputs.issue_regression_matrix) }}
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Set up environment variables
         uses: ./.github/actions/set_env_variables
@@ -150,7 +150,7 @@ jobs:
 
       - name: Upload Logs
         if: ${{ always() }}
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: test_${{ matrix.test }}_logs
           path: ./test_logs
@@ -164,7 +164,7 @@ jobs:
       fail-fast: false
       matrix: ${{ fromJSON(needs.prepare_test_matrices.outputs.design_matrix) }}
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           submodules: true
 
@@ -216,7 +216,7 @@ jobs:
 
       - name: Upload Run Tarball
         if: ${{ always() }}
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: ${{ env.ESCAPED_DESIGN_NAME }}-${{ matrix.design.pdk }}
           path: ./reproducible.tar.gz
@@ -236,7 +236,7 @@ jobs:
           export PUSHING=$(ruby -e 'if ("${{ github.event_name }}" != "pull_request" && "${{ secrets.DOCKERHUB_USER }}" != ""); print(1) else print(0) end')
           echo "PUSHING=$PUSHING" >> $GITHUB_ENV
 
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0
 
diff --git a/scripts/openlane-1.0.0.tm b/scripts/openlane-1.0.0.tm
index 7cc3c8b5e..f12f7c017 100644
--- a/scripts/openlane-1.0.0.tm
+++ b/scripts/openlane-1.0.0.tm
@@ -12,6 +12,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 set scripts_dir [ file dirname [ file normalize [ info script ] ] ]
-foreach file [glob $scripts_dir/tcl_commands/*.tcl] {
+foreach file [glob "$scripts_dir/tcl_commands/*.tcl"] {
     source $file
 }
diff --git a/scripts/openlane_utils-1.0.0.tm b/scripts/openlane_utils-1.0.0.tm
index 3187aefac..1d8d1b32d 100644
--- a/scripts/openlane_utils-1.0.0.tm
+++ b/scripts/openlane_utils-1.0.0.tm
@@ -12,6 +12,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 set scripts_dir [ file dirname [ file normalize [ info script ] ] ]
-foreach file [glob $scripts_dir/utils/*.tcl] {
+foreach file [glob "$scripts_dir/utils/*.tcl"] {
     source $file
 }