diff --git a/spark-analytics/base/cronjobs.yaml b/spark-analytics/base/cronjobs.yaml
index 2e49e3e..42d3230 100755
--- a/spark-analytics/base/cronjobs.yaml
+++ b/spark-analytics/base/cronjobs.yaml
@@ -38,7 +38,7 @@ spec:
                 - --conf
                 - spark.executor.memory=1g
                 - --conf
-                - spark.driver.memory=512m
+                - spark.driver.memory=256m
                 - --class
                 - de.nowchess.analytics.OpeningBookJob
                 - local:///app/analytics.jar
@@ -115,7 +115,7 @@ spec:
                 - --conf
                 - spark.executor.memory=1g
                 - --conf
-                - spark.driver.memory=512m
+                - spark.driver.memory=256m
                 - --class
                 - de.nowchess.analytics.PlayerStatsJob
                 - local:///app/analytics.jar
@@ -191,7 +191,7 @@ spec:
                 - --conf
                 - spark.executor.memory=1g
                 - --conf
-                - spark.driver.memory=512m
+                - spark.driver.memory=256m
                 - --class
                 - de.nowchess.analytics.PlayerClusteringJob
                 - local:///app/analytics.jar
@@ -268,7 +268,7 @@ spec:
                 - --conf
                 - spark.executor.memory=1g
                 - --conf
-                - spark.driver.memory=512m
+                - spark.driver.memory=256m
                 - --class
                 - de.nowchess.analytics.PlayerGraphJob
                 - local:///app/analytics.jar
diff --git a/spark-analytics/eu-central-1-prod/kustomization.yaml b/spark-analytics/eu-central-1-prod/kustomization.yaml
index 44218b3..a90b4a0 100755
--- a/spark-analytics/eu-central-1-prod/kustomization.yaml
+++ b/spark-analytics/eu-central-1-prod/kustomization.yaml
@@ -26,11 +26,13 @@ patches:
                       - --master
                       - spark://spark-master:7077
                       - --conf
-                      - spark.executor.instances=2
+                      - spark.executor.instances=1
                       - --conf
-                      - spark.executor.memory=1g
+                      - spark.executor.cores=1
                       - --conf
-                      - spark.driver.memory=512m
+                      - spark.executor.memory=200m
+                      - --conf
+                      - spark.driver.memory=256m
                       - --class
                       - de.nowchess.analytics.OpeningBookJob
                       - local:///app/analytics.jar
@@ -56,11 +58,13 @@ patches:
                       - --master
                       - spark://spark-master:7077
                       - --conf
-                      - spark.executor.instances=2
+                      - spark.executor.instances=1
                       - --conf
-                      - spark.executor.memory=1g
+                      - spark.executor.cores=1
                       - --conf
-                      - spark.driver.memory=512m
+                      - spark.executor.memory=200m
+                      - --conf
+                      - spark.driver.memory=256m
                       - --class
                       - de.nowchess.analytics.PlayerStatsJob
                       - local:///app/analytics.jar
@@ -85,11 +89,13 @@ patches:
                       - --master
                       - spark://spark-master:7077
                       - --conf
-                      - spark.executor.instances=2
+                      - spark.executor.instances=1
                       - --conf
-                      - spark.executor.memory=1g
+                      - spark.executor.cores=1
                       - --conf
-                      - spark.driver.memory=512m
+                      - spark.executor.memory=200m
+                      - --conf
+                      - spark.driver.memory=256m
                       - --class
                       - de.nowchess.analytics.PlayerClusteringJob
                       - local:///app/analytics.jar
@@ -115,11 +121,13 @@ patches:
                       - --master
                       - spark://spark-master:7077
                       - --conf
-                      - spark.executor.instances=2
+                      - spark.executor.instances=1
                       - --conf
-                      - spark.executor.memory=1g
+                      - spark.executor.cores=1
                       - --conf
-                      - spark.driver.memory=512m
+                      - spark.executor.memory=200m
+                      - --conf
+                      - spark.driver.memory=256m
                       - --class
                       - de.nowchess.analytics.PlayerGraphJob
                       - local:///app/analytics.jar