diff --git a/pkg/services/object_manager/placement/netmap.go b/pkg/services/object_manager/placement/netmap.go
index 41267dbae..8163529ed 100644
--- a/pkg/services/object_manager/placement/netmap.go
+++ b/pkg/services/object_manager/placement/netmap.go
@@ -14,9 +14,10 @@ import (
 
 type netMapBuilder struct {
 	nmSrc netmap.Source
-	// mtx protects lastNm and containerCache fields.
-	mtx    sync.Mutex
-	lastNm *netmapSDK.NetMap
+	// mtx protects lastEpoch and containerCache fields.
+	mtx sync.Mutex
+	// lastEpoch contains contains network map epoch for all values in the container cache.
+	lastEpoch uint64
 	// containerCache caches container nodes by ID. It is used to skip `GetContainerNodes` invocation if
 	// neither netmap nor container has changed.
 	containerCache simplelru.LRUCache[cid.ID, [][]netmapSDK.NodeInfo]
@@ -61,13 +62,14 @@ func (b *netMapBuilder) BuildPlacement(cnr cid.ID, obj *oid.ID, p netmapSDK.Plac
 	cnr.Encode(binCnr)
 
 	b.mtx.Lock()
-	if nm == b.lastNm {
+	if nm.Epoch() == b.lastEpoch {
 		raw, ok := b.containerCache.Get(cnr)
 		b.mtx.Unlock()
 		if ok {
 			return BuildObjectPlacement(nm, raw, obj)
 		}
 	} else {
+		b.lastEpoch = nm.Epoch()
 		b.containerCache.Purge()
 		b.mtx.Unlock()
 	}
@@ -78,7 +80,9 @@ func (b *netMapBuilder) BuildPlacement(cnr cid.ID, obj *oid.ID, p netmapSDK.Plac
 	}
 
 	b.mtx.Lock()
-	b.containerCache.Add(cnr, cn)
+	if b.lastEpoch == nm.Epoch() {
+		b.containerCache.Add(cnr, cn)
+	}
 	b.mtx.Unlock()
 
 	return BuildObjectPlacement(nm, cn, obj)