diff --git a/Dockerfile b/Dockerfile
index 5e99b511..fb854489 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -177,6 +177,7 @@ COPY --from=source $MW_ORIGIN_FILES $MW_ORIGIN_FILES
 # Default values
 ENV MW_ENABLE_JOB_RUNNER=true \
 	MW_JOB_RUNNER_PAUSE=2 \
+	MW_JOB_RUNNER_MEMORY_LIMIT=512M \
 	MW_ENABLE_TRANSCODER=true \
 	MW_JOB_TRANSCODER_PAUSE=60 \
 	MW_MAP_DOMAIN_TO_DOCKER_GATEWAY=true \
diff --git a/_sources/scripts/maintenance-scripts/mw_job_runner.sh b/_sources/scripts/maintenance-scripts/mw_job_runner.sh
index 32993344..33e58437 100755
--- a/_sources/scripts/maintenance-scripts/mw_job_runner.sh
+++ b/_sources/scripts/maintenance-scripts/mw_job_runner.sh
@@ -22,13 +22,13 @@ if [ -f "$MW_VOLUME/config/wikis.yaml" ]; then
             while true; do
                 # Job types that need to be run ASAP no matter how many of them are in the queue
                 # Those jobs should be very "cheap" to run
-                php $RJ --type="enotifNotify" --server="https://$wiki_url" --wiki="$wiki_id" 
+                php $RJ --memory-limit="$MW_JOB_RUNNER_MEMORY_LIMIT" --type="enotifNotify" --server="https://$wiki_url" --wiki="$wiki_id" 
                 sleep 1
-                php $RJ --type="createPage" --server="https://$wiki_url" --wiki="$wiki_id" 
+                php $RJ --memory-limit="$MW_JOB_RUNNER_MEMORY_LIMIT" --type="createPage" --server="https://$wiki_url" --wiki="$wiki_id" 
                 sleep 1
-                php $RJ --type="refreshLinks" --server="https://$wiki_url" --wiki="$wiki_id" 
+                php $RJ --memory-limit="$MW_JOB_RUNNER_MEMORY_LIMIT" --type="refreshLinks" --server="https://$wiki_url" --wiki="$wiki_id" 
                 sleep 1
-                php $RJ --type="htmlCacheUpdate" --maxjobs=500 --server="https://$wiki_url" --wiki="$wiki_id" 
+                php $RJ --memory-limit="$MW_JOB_RUNNER_MEMORY_LIMIT" --type="htmlCacheUpdate" --maxjobs=500 --server="https://$wiki_url" --wiki="$wiki_id" 
                 sleep 1
                 # Everything else, limit the number of jobs on each batch
                 # The --wait parameter will pause the execution here until new jobs are added,