diff --git a/.github/workflows/acceptance-tests.yml b/.github/workflows/acceptance-tests.yml
index 151c5b13..76f092ad 100644
--- a/.github/workflows/acceptance-tests.yml
+++ b/.github/workflows/acceptance-tests.yml
@@ -29,7 +29,7 @@ jobs:
       extra-values: ${{ steps.deploy-comment.outputs.extra-values}}
     steps:
       - id: deploy-comment
-        uses: SwissDataScienceCenter/renku-actions/check-pr-description@v1.11.3
+        uses: SwissDataScienceCenter/renku-actions/check-pr-description@v1.12.3
         with:
           string: /deploy
           pr_ref: ${{ github.event.number }}
@@ -43,7 +43,7 @@ jobs:
       url: https://renku-ci-nb-${{ github.event.number }}.dev.renku.ch
     steps:
       - name: deploy-pr
-        uses: SwissDataScienceCenter/renku-actions/deploy-renku@v1.11.3
+        uses: SwissDataScienceCenter/renku-actions/deploy-renku@v1.12.3
         env:
           DOCKER_PASSWORD: ${{ secrets.RENKU_DOCKER_PASSWORD }}
           DOCKER_USERNAME: ${{ secrets.RENKU_DOCKER_USERNAME }}
@@ -89,7 +89,7 @@ jobs:
     if: github.event.action != 'closed' && needs.check-deploy.outputs.pr-contains-string == 'true' && needs.check-deploy.outputs.test-enabled == 'true'
     runs-on: ubuntu-22.04
     steps:
-      - uses: SwissDataScienceCenter/renku-actions/test-renku@v1.11.3
+      - uses: SwissDataScienceCenter/renku-actions/test-renku@v1.12.3
         with:
           kubeconfig: ${{ secrets.RENKUBOT_DEV_KUBECONFIG }}
           renku-release: renku-ci-nb-${{ github.event.number }}
@@ -118,7 +118,7 @@ jobs:
     steps:
       - name: Extract Renku repository reference
         run: echo "RENKU_REFERENCE=`echo '${{ needs.check-deploy.outputs.renku }}' | cut -d'@' -f2`" >> $GITHUB_ENV
-      - uses: SwissDataScienceCenter/renku-actions/test-renku-cypress@v1.11.3
+      - uses: SwissDataScienceCenter/renku-actions/test-renku-cypress@v1.12.3
         with:
           e2e-target: ${{ matrix.tests }}
           renku-reference: ${{ env.RENKU_REFERENCE }}
@@ -132,7 +132,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - name: renku teardown
-        uses: SwissDataScienceCenter/renku-actions/cleanup-renku-ci-deployments@v1.11.3
+        uses: SwissDataScienceCenter/renku-actions/cleanup-renku-ci-deployments@v1.12.3
         env:
           HELM_RELEASE_REGEX: "^renku-ci-nb-${{ github.event.number }}$"
           GITLAB_TOKEN: ${{ secrets.DEV_GITLAB_TOKEN }}
diff --git a/renku_notebooks/api/amalthea_patches/general.py b/renku_notebooks/api/amalthea_patches/general.py
index 53aa7ea3..19696007 100644
--- a/renku_notebooks/api/amalthea_patches/general.py
+++ b/renku_notebooks/api/amalthea_patches/general.py
@@ -201,32 +201,33 @@ def oidc_unverified_email(server: "UserServer"):
 
 def dev_shm(server: "UserServer"):
     patches = []
-    if server.server_options.storage:
-        patches.append(
-            {
-                "type": "application/json-patch+json",
-                "patch": [
-                    {
-                        "op": "add",
-                        "path": "/statefulset/spec/template/spec/volumes/-",
-                        "value": {
-                            "name": "shm",
-                            "emptyDir": {
-                                "medium": "Memory",
-                                # NOTE: We are giving /dev/shm up to half of the memory request
-                                "sizeLimit": int(server.server_options.storage / 2),
-                            },
+    patches.append(
+        {
+            "type": "application/json-patch+json",
+            "patch": [
+                {
+                    "op": "add",
+                    "path": "/statefulset/spec/template/spec/volumes/-",
+                    "value": {
+                        "name": "shm",
+                        "emptyDir": {
+                            "medium": "Memory",
+                            # NOTE: We are giving /dev/shm up to half of the memory request
+                            "sizeLimit": int(server.server_options.memory / 2)
+                            if isinstance(server.server_options.memory, int)
+                            else "1Gi",
                         },
                     },
-                    {
-                        "op": "add",
-                        "path": "/statefulset/spec/template/spec/containers/1/volumeMounts/-",
-                        "value": {
-                            "mountPath": "/dev/shm",
-                            "name": "shm",
-                        },
+                },
+                {
+                    "op": "add",
+                    "path": "/statefulset/spec/template/spec/containers/0/volumeMounts/-",
+                    "value": {
+                        "mountPath": "/dev/shm",
+                        "name": "shm",
                     },
-                ],
-            }
-        )
+                },
+            ],
+        }
+    )
     return patches