diff --git a/resources/services/observatorium-metrics-template.yaml b/resources/services/observatorium-metrics-template.yaml
index b93576ad92..3ff10b770f 100644
--- a/resources/services/observatorium-metrics-template.yaml
+++ b/resources/services/observatorium-metrics-template.yaml
@@ -2913,6 +2913,8 @@ objects:
           - --store.grpc.series-sample-limit=${THANOS_STORE_SERIES_SAMPLE_LIMIT}
           - --max-time=${THANOS_STORE_MAX_TIME}
           - --store.enable-index-header-lazy-reader
+          - --store.index-header-lazy-download-strategy=${THANOS_STORE_INDEX_HEADER_LAZY_DOWNLOAD_STRATEGY}
+          - --store.index-header-lazy-reader-idle-timeout=${THANOS_STORE_INDEX_HEADER_LAZY_READER_IDLE_TIMEOUT}
           env:
           - name: OBJSTORE_CONFIG
             valueFrom:
@@ -3171,6 +3173,8 @@ objects:
           - --store.grpc.series-sample-limit=${THANOS_STORE_SERIES_SAMPLE_LIMIT}
           - --max-time=${THANOS_STORE_MAX_TIME}
           - --store.enable-index-header-lazy-reader
+          - --store.index-header-lazy-download-strategy=${THANOS_STORE_INDEX_HEADER_LAZY_DOWNLOAD_STRATEGY}
+          - --store.index-header-lazy-reader-idle-timeout=${THANOS_STORE_INDEX_HEADER_LAZY_READER_IDLE_TIMEOUT}
           env:
           - name: OBJSTORE_CONFIG
             valueFrom:
@@ -3429,6 +3433,8 @@ objects:
           - --store.grpc.series-sample-limit=${THANOS_STORE_SERIES_SAMPLE_LIMIT}
           - --max-time=${THANOS_STORE_MAX_TIME}
           - --store.enable-index-header-lazy-reader
+          - --store.index-header-lazy-download-strategy=${THANOS_STORE_INDEX_HEADER_LAZY_DOWNLOAD_STRATEGY}
+          - --store.index-header-lazy-reader-idle-timeout=${THANOS_STORE_INDEX_HEADER_LAZY_READER_IDLE_TIMEOUT}
           env:
           - name: OBJSTORE_CONFIG
             valueFrom:
@@ -3687,6 +3693,8 @@ objects:
           - --store.grpc.series-sample-limit=${THANOS_STORE_SERIES_SAMPLE_LIMIT}
           - --max-time=${THANOS_STORE_MAX_TIME}
           - --store.enable-index-header-lazy-reader
+          - --store.index-header-lazy-download-strategy=${THANOS_STORE_INDEX_HEADER_LAZY_DOWNLOAD_STRATEGY}
+          - --store.index-header-lazy-reader-idle-timeout=${THANOS_STORE_INDEX_HEADER_LAZY_READER_IDLE_TIMEOUT}
           env:
           - name: OBJSTORE_CONFIG
             valueFrom:
@@ -3945,6 +3953,8 @@ objects:
           - --store.grpc.series-sample-limit=${THANOS_STORE_SERIES_SAMPLE_LIMIT}
           - --max-time=${THANOS_STORE_MAX_TIME}
           - --store.enable-index-header-lazy-reader
+          - --store.index-header-lazy-download-strategy=${THANOS_STORE_INDEX_HEADER_LAZY_DOWNLOAD_STRATEGY}
+          - --store.index-header-lazy-reader-idle-timeout=${THANOS_STORE_INDEX_HEADER_LAZY_READER_IDLE_TIMEOUT}
           env:
           - name: OBJSTORE_CONFIG
             valueFrom:
@@ -4203,6 +4213,8 @@ objects:
           - --store.grpc.series-sample-limit=${THANOS_STORE_SERIES_SAMPLE_LIMIT}
           - --max-time=${THANOS_STORE_MAX_TIME}
           - --store.enable-index-header-lazy-reader
+          - --store.index-header-lazy-download-strategy=${THANOS_STORE_INDEX_HEADER_LAZY_DOWNLOAD_STRATEGY}
+          - --store.index-header-lazy-reader-idle-timeout=${THANOS_STORE_INDEX_HEADER_LAZY_READER_IDLE_TIMEOUT}
           env:
           - name: OBJSTORE_CONFIG
             valueFrom:
@@ -4621,6 +4633,10 @@ parameters:
   value: "5"
 - name: THANOS_STORE_MAX_TIME
   value: "9999-12-31T23:59:59Z"
+- name: THANOS_STORE_INDEX_HEADER_LAZY_DOWNLOAD_STRATEGY
+  value: eager
+- name: THANOS_STORE_INDEX_HEADER_LAZY_READER_IDLE_TIMEOUT
+  value: 3m
 - name: CONFIGMAP_RELOADER_IMAGE
   value: quay.io/openshift/origin-configmap-reloader
 - name: CONFIGMAP_RELOADER_IMAGE_TAG