diff --git a/go.mod b/go.mod
index e94a56579..9cb2ea939 100644
--- a/go.mod
+++ b/go.mod
@@ -3,7 +3,7 @@ module github.com/VictoriaMetrics/VictoriaMetrics
 require (
 	cloud.google.com/go v0.82.0 // indirect
 	cloud.google.com/go/storage v1.15.0
-	github.com/VictoriaMetrics/fastcache v1.5.8
+	github.com/VictoriaMetrics/fastcache v1.6.0
 
 	// Do not use the original github.com/valyala/fasthttp because of issues
 	// like https://github.com/valyala/fasthttp/commit/996610f021ff45fdc98c2ce7884d5fa4e7f9199b
diff --git a/go.sum b/go.sum
index 0ec042d49..2947f6e11 100644
--- a/go.sum
+++ b/go.sum
@@ -96,8 +96,8 @@ github.com/PuerkitoBio/urlesc v0.0.0-20170810143723-de5bf2ad4578/go.mod h1:uGdko
 github.com/SAP/go-hdb v0.14.1/go.mod h1:7fdQLVC2lER3urZLjZCm0AuMQfApof92n3aylBPEkMo=
 github.com/Shopify/sarama v1.19.0/go.mod h1:FVkBWblsNy7DGZRfXLU0O9RCGt5g3g3yEuWXgklEdEo=
 github.com/Shopify/toxiproxy v2.1.4+incompatible/go.mod h1:OXgGpZ6Cli1/URJOF1DMxUHB2q5Ap20/P/eIdh4G0pI=
-github.com/VictoriaMetrics/fastcache v1.5.8 h1:XW+YVx9lEXITBVv35ugK9OyotdNJVcbza69o3jmqWuI=
-github.com/VictoriaMetrics/fastcache v1.5.8/go.mod h1:SiMZNgwEPJ9qWLshu9tyuE6bKc9ZWYhcNV/L7jurprQ=
+github.com/VictoriaMetrics/fastcache v1.6.0 h1:C/3Oi3EiBCqufydp1neRZkqcwmEiuRT9c3fqvvgKm5o=
+github.com/VictoriaMetrics/fastcache v1.6.0/go.mod h1:0qHz5QP0GMX4pfmMA/zt5RgfNuXJrTP0zS7DqpHGGTw=
 github.com/VictoriaMetrics/fasthttp v1.0.15 h1:UaX6kOxcQRtwMWBCX5avt2d1IzHp8qK8OUpUswz5akQ=
 github.com/VictoriaMetrics/fasthttp v1.0.15/go.mod h1:s9o5H4T58Kt4CTrdyJp4RorBKCwY7gRVS3N2JAUJ9jw=
 github.com/VictoriaMetrics/metrics v1.12.2/go.mod h1:Z1tSfPfngDn12bTfZSCqArT3OPY3u88J12hSoOhuiRE=
@@ -1136,6 +1136,7 @@ golang.org/x/sys v0.0.0-20210305230114-8fe3ee5dd75b/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20210309074719-68d13333faf2/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210315160823-c6e025ad8005/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210320140829-1e4c9ba3b0c4/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210324051608-47abb6519492/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210330210617-4fbd30eecc44/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210403161142-5e06dd20ab57/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210412220455-f1c623a9e750/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
diff --git a/vendor/github.com/VictoriaMetrics/fastcache/go.mod b/vendor/github.com/VictoriaMetrics/fastcache/go.mod
index f575823ae..783ebfd46 100644
--- a/vendor/github.com/VictoriaMetrics/fastcache/go.mod
+++ b/vendor/github.com/VictoriaMetrics/fastcache/go.mod
@@ -8,4 +8,5 @@ require (
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/golang/snappy v0.0.3
 	github.com/stretchr/testify v1.3.0 // indirect
+	golang.org/x/sys v0.0.0-20210324051608-47abb6519492
 )
diff --git a/vendor/github.com/VictoriaMetrics/fastcache/go.sum b/vendor/github.com/VictoriaMetrics/fastcache/go.sum
index 066369ee9..046d62083 100644
--- a/vendor/github.com/VictoriaMetrics/fastcache/go.sum
+++ b/vendor/github.com/VictoriaMetrics/fastcache/go.sum
@@ -12,3 +12,5 @@ github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZN
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.3.0 h1:TivCn/peBQ7UY8ooIcPgZFpTNSz0Q2U6UrFlUfqbe0Q=
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
+golang.org/x/sys v0.0.0-20210324051608-47abb6519492 h1:Paq34FxTluEPvVyayQqMPgHm+vTOrIifmcYxFBx9TLg=
+golang.org/x/sys v0.0.0-20210324051608-47abb6519492/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
diff --git a/vendor/github.com/VictoriaMetrics/fastcache/malloc_mmap.go b/vendor/github.com/VictoriaMetrics/fastcache/malloc_mmap.go
index 424b79b43..e0cd0e761 100644
--- a/vendor/github.com/VictoriaMetrics/fastcache/malloc_mmap.go
+++ b/vendor/github.com/VictoriaMetrics/fastcache/malloc_mmap.go
@@ -5,8 +5,9 @@ package fastcache
 import (
 	"fmt"
 	"sync"
-	"syscall"
 	"unsafe"
+
+	"golang.org/x/sys/unix"
 )
 
 const chunksPerAlloc = 1024
@@ -21,7 +22,7 @@ func getChunk() []byte {
 	if len(freeChunks) == 0 {
 		// Allocate offheap memory, so GOGC won't take into account cache size.
 		// This should reduce free memory waste.
-		data, err := syscall.Mmap(-1, 0, chunkSize*chunksPerAlloc, syscall.PROT_READ|syscall.PROT_WRITE, syscall.MAP_ANON|syscall.MAP_PRIVATE)
+		data, err := unix.Mmap(-1, 0, chunkSize*chunksPerAlloc, unix.PROT_READ|unix.PROT_WRITE, unix.MAP_ANON|unix.MAP_PRIVATE)
 		if err != nil {
 			panic(fmt.Errorf("cannot allocate %d bytes via mmap: %s", chunkSize*chunksPerAlloc, err))
 		}
diff --git a/vendor/modules.txt b/vendor/modules.txt
index c3c85ea0d..a5a858f9a 100644
--- a/vendor/modules.txt
+++ b/vendor/modules.txt
@@ -10,7 +10,7 @@ cloud.google.com/go/internal/version
 # cloud.google.com/go/storage v1.15.0
 ## explicit
 cloud.google.com/go/storage
-# github.com/VictoriaMetrics/fastcache v1.5.8
+# github.com/VictoriaMetrics/fastcache v1.6.0
 ## explicit
 github.com/VictoriaMetrics/fastcache
 # github.com/VictoriaMetrics/fasthttp v1.0.15