diff --git a/store/cachekv/internal/mergeiterator.go b/store/cachekv/internal/mergeiterator.go
index e4d80ab491..58e9497b30 100644
--- a/store/cachekv/internal/mergeiterator.go
+++ b/store/cachekv/internal/mergeiterator.go
@@ -24,7 +24,7 @@ type cacheMergeIterator struct {
 
 var _ types.Iterator = (*cacheMergeIterator)(nil)
 
-func NewCacheMergeIterator(parent, cache types.Iterator, ascending bool) *cacheMergeIterator { //nolint:revive
+func NewCacheMergeIterator(parent, cache types.Iterator, ascending bool) types.Iterator {
 	iter := &cacheMergeIterator{
 		parent:    parent,
 		cache:     cache,
diff --git a/store/iavl/tree_test.go b/store/iavl/tree_test.go
index fa04129616..c03e9518c7 100644
--- a/store/iavl/tree_test.go
+++ b/store/iavl/tree_test.go
@@ -14,8 +14,8 @@ func TestImmutableTreePanics(t *testing.T) {
 	it := &immutableTree{immTree}
 	require.Panics(t, func() { it.Set([]byte{}, []byte{}) })
 	require.Panics(t, func() { it.Remove([]byte{}) })
-	require.Panics(t, func() { it.SaveVersion() })           //nolint:errcheck
-	require.Panics(t, func() { it.DeleteVersion(int64(1)) }) //nolint:errcheck
+	require.Panics(t, func() { _, _, _ = it.SaveVersion() })
+	require.Panics(t, func() { _ = it.DeleteVersion(int64(1)) })
 
 	imm, err := it.GetImmutable(1)
 	require.Error(t, err)
diff --git a/store/internal/conv/string_test.go b/store/internal/conv/string_test.go
index 7029e3190a..3a14517531 100644
--- a/store/internal/conv/string_test.go
+++ b/store/internal/conv/string_test.go
@@ -26,7 +26,7 @@ func (s *StringSuite) TestUnsafeStrToBytes() {
 		b := unsafeConvertStr()
 		runtime.GC()
 		<-time.NewTimer(2 * time.Millisecond).C
-		b2 := append(b, 'd') 
+		b2 := append(b, 'd')
 		s.Equal("abc", string(b))
 		s.Equal("abcd", string(b2))
 	}
diff --git a/store/mem/store.go b/store/mem/store.go
index ce83089f70..ca832d7b77 100644
--- a/store/mem/store.go
+++ b/store/mem/store.go
@@ -27,7 +27,7 @@ func NewStore() *Store {
 	return NewStoreWithDB(dbm.NewMemDB())
 }
 
-func NewStoreWithDB(db *dbm.MemDB) *Store { //nolint: interfacer
+func NewStoreWithDB(db *dbm.MemDB) *Store { //nolint: interfacer // Concrete return type is fine here.
 	return &Store{Store: dbadapter.Store{DB: db}}
 }
 
diff --git a/store/rootmulti/store.go b/store/rootmulti/store.go
index a47a9beaee..55ee77e394 100644
--- a/store/rootmulti/store.go
+++ b/store/rootmulti/store.go
@@ -827,7 +827,6 @@ func (rs *Store) Snapshot(height uint64, protoWriter protoio.Writer) error {
 				node, err := exporter.Next()
 				if err == iavltree.ErrorExportDone {
 					rs.logger.Debug("snapshot Done", "store", store.name, "nodeCount", nodeCount)
-					nodeCount = 0
 					break
 				} else if err != nil {
 					return err
diff --git a/store/types/store_test.go b/store/types/store_test.go
index 0a46f84fc9..b6304d131b 100644
--- a/store/types/store_test.go
+++ b/store/types/store_test.go
@@ -233,8 +233,6 @@ func TestNewTransientStoreKeys(t *testing.T) {
 func TestNewInfiniteGasMeter(t *testing.T) {
 	gm := NewInfiniteGasMeter()
 	require.NotNil(t, gm)
-	_, ok := gm.(GasMeter) //nolint:gosimple
-	require.True(t, ok)
 }
 
 func TestStoreTypes(t *testing.T) {