diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index b7d75d5470d8073a2021e06428e9170f605ec7b3..4a412569fbd477f02a0b67b83e8814ab98b34031 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -51,7 +51,7 @@ build-benchmarks:
       - "theodolite-benchmarks/build/libs/*.jar"
       - "theodolite-benchmarks/*/build/libs/*.jar"
       - "theodolite-benchmarks/*/build/distributions/*.tar"
-    expire_in: 1 day
+    expire_in: 6 hours
 
 test-benchmarks:
   stage: test
@@ -234,7 +234,7 @@ build-theodolite-jvm:
     paths:
       - "theodolite-quarkus/build/lib/*"
       - "theodolite-quarkus/build/*-runner.jar"
-    expire_in: 1 day
+    expire_in: 6 hours
 
 build-theodolite-native:
   stage: build
@@ -245,7 +245,7 @@ build-theodolite-native:
   artifacts:
     paths:
       - "theodolite-quarkus/build/*-runner"
-    expire_in: 1 day
+    expire_in: 6 hours
 
 test-theodolite:
   stage: test
diff --git a/execution/helm/values.yaml b/execution/helm/values.yaml
index 6bcd6daa54254279a0c8198ca0add2f451a6e700..67dab74c3931ce13a1ab0f7504a946a208b4dfb8 100644
--- a/execution/helm/values.yaml
+++ b/execution/helm/values.yaml
@@ -24,6 +24,9 @@ grafana:
   # Administrator credentials when not using an existing secret (see below)
   adminUser: admin
   adminPassword: admin
+  grafana.ini:
+    users:
+      default_theme: light
   ## Sidecars that collect the configmaps with specified label and stores the included files them into the respective folders
   ## Requires at least Grafana 5 to work and can't be used together with parameters dashboardProviders, datasources and dashboards
   sidecar: