diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2cb23eb680..8e01845d5d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -63,6 +63,7 @@ We use *breaking :warning:* to mark changes that are not backward compatible (re
 - [#6363](https://github.com/thanos-io/thanos/pull/6363) Store: Check context error when expanding postings.
 - [#6405](https://github.com/thanos-io/thanos/pull/6405) Index Cache: Change postings cache key to include the encoding format used so that older Thanos versions would not try to decode it during the deployment of a new version.
 - [#6432](https://github.com/thanos-io/thanos/pull/6432) Receive: Remove duplicated `gopkg.in/fsnotify.v1` dependency
+- [#6479](https://github.com/thanos-io/thanos/pull/6479) Store: *breaking :warning:* Rename `thanos_bucket_store_cached_series_fetch_duration_seconds` to `thanos_bucket_store_series_fetch_duration_seconds` and `thanos_bucket_store_cached_postings_fetch_duration_seconds` to `thanos_bucket_store_postings_fetch_duration_seconds`.
 
 ### Removed
 
diff --git a/pkg/store/bucket.go b/pkg/store/bucket.go
index ac7da8e613..80544e6bdc 100644
--- a/pkg/store/bucket.go
+++ b/pkg/store/bucket.go
@@ -271,13 +271,13 @@ func newBucketStoreMetrics(reg prometheus.Registerer) *bucketStoreMetrics {
 	})
 
 	m.seriesFetchDuration = promauto.With(reg).NewHistogram(prometheus.HistogramOpts{
-		Name:    "thanos_bucket_store_cached_series_fetch_duration_seconds",
+		Name:    "thanos_bucket_store_series_fetch_duration_seconds",
 		Help:    "The time it takes to fetch series to respond to a request sent to a store gateway. It includes both the time to fetch it from the cache and from storage in case of cache misses.",
 		Buckets: []float64{0.001, 0.01, 0.1, 0.3, 0.6, 1, 3, 6, 9, 20, 30, 60, 90, 120},
 	})
 
 	m.postingsFetchDuration = promauto.With(reg).NewHistogram(prometheus.HistogramOpts{
-		Name:    "thanos_bucket_store_cached_postings_fetch_duration_seconds",
+		Name:    "thanos_bucket_store_postings_fetch_duration_seconds",
 		Help:    "The time it takes to fetch postings to respond to a request sent to a store gateway. It includes both the time to fetch it from the cache and from storage in case of cache misses.",
 		Buckets: []float64{0.001, 0.01, 0.1, 0.3, 0.6, 1, 3, 6, 9, 20, 30, 60, 90, 120},
 	})