diff --git a/.changes/unreleased/Dependencies-20251027-000539.yaml b/.changes/unreleased/Dependencies-20251027-000539.yaml
new file mode 100644
index 00000000000..bcfd1670b55
--- /dev/null
+++ b/.changes/unreleased/Dependencies-20251027-000539.yaml
@@ -0,0 +1,6 @@
+kind: "Dependencies"
+body: "Bump actions/upload-artifact from 4 to 5"
+time: 2025-10-27T00:05:39.00000Z
+custom:
+  Author: dependabot[bot]
+  Issue: 12116
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 772b5298a0e..66379ec8147 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -237,7 +237,7 @@ jobs:
           CURRENT_DATE=$(date +'%Y-%m-%dT%H_%M_%S') # no colons allowed for artifacts
           echo "date=$CURRENT_DATE" >> $GITHUB_OUTPUT
 
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@v5
         if: always()
         with:
           name: logs_${{ matrix.python-version }}_${{ matrix.os }}_${{ matrix.split-group }}_${{ steps.date.outputs.date }}
@@ -319,7 +319,7 @@ jobs:
           CURRENT_DATE=$(date +'%Y-%m-%dT%H_%M_%S') # no colons allowed for artifacts
           echo "date=$CURRENT_DATE" >> $GITHUB_OUTPUT
 
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@v5
         if: always()
         with:
           name: logs_${{ matrix.python-version }}_${{ matrix.os }}_${{ matrix.split-group }}_${{ steps.date.outputs.date }}
diff --git a/.github/workflows/model_performance.yml b/.github/workflows/model_performance.yml
index 965a14b24bf..b5e79d73cd1 100644
--- a/.github/workflows/model_performance.yml
+++ b/.github/workflows/model_performance.yml
@@ -195,7 +195,7 @@ jobs:
       - name: '[DEBUG] ls baseline directory after run'
         run: ls -R performance/baselines/
 
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@v5
         with:
           name: baseline
           path: performance/baselines/${{ needs.set-variables.outputs.release_id }}/
diff --git a/.github/workflows/schema-check.yml b/.github/workflows/schema-check.yml
index f8280a6e86e..6c8a8e50588 100644
--- a/.github/workflows/schema-check.yml
+++ b/.github/workflows/schema-check.yml
@@ -96,7 +96,7 @@ jobs:
           git diff -I='*[0-9]{4}-[0-9]{2}-[0-9]{2}' -I='*[0-9]+\.[0-9]+\.[0-9]+' --exit-code > ${{ env.SCHEMA_DIFF_ARTIFACT }}
 
       - name: Upload schema diff
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         if: ${{ failure() && steps.check_artifact_changes.outputs.artifacts_changed == 'true' }}
         with:
           name: 'schema_changes.txt'