diff --git a/ethdb/kv_interface.go b/ethdb/kv_interface.go
index 83c7b4282..07f08df95 100644
--- a/ethdb/kv_interface.go
+++ b/ethdb/kv_interface.go
@@ -9,7 +9,7 @@ import (
 	"github.com/ledgerwatch/erigon/metrics"
 )
 
-const ReadersLimit = 2000 // MDBX_READERS_LIMIT on 64bit system
+const ReadersLimit = 32000 // MDBX_READERS_LIMIT=32767
 
 var (
 	ErrAttemptToDeleteNonDeprecatedBucket = errors.New("only buckets from dbutils.DeprecatedBuckets can be deleted")
diff --git a/go.mod b/go.mod
index 5ba4e3553..a3b62ecb8 100644
--- a/go.mod
+++ b/go.mod
@@ -54,7 +54,7 @@ require (
 	github.com/spf13/cobra v1.1.3
 	github.com/spf13/pflag v1.0.5
 	github.com/stretchr/testify v1.7.0
-	github.com/torquem-ch/mdbx-go v0.15.0
+	github.com/torquem-ch/mdbx-go v0.16.0
 	github.com/ugorji/go/codec v1.1.13
 	github.com/ugorji/go/codec/codecgen v1.1.13
 	github.com/urfave/cli v1.22.5
diff --git a/go.sum b/go.sum
index a506ad294..3025ff78f 100644
--- a/go.sum
+++ b/go.sum
@@ -990,6 +990,8 @@ github.com/tmc/grpc-websocket-proxy v0.0.0-20170815181823-89b8d40f7ca8/go.mod h1
 github.com/tmc/grpc-websocket-proxy v0.0.0-20190109142713-0ad062ec5ee5/go.mod h1:ncp9v5uamzpCO7NfCPTXjqaC+bZgJeR0sMTm6dMHP7U=
 github.com/torquem-ch/mdbx-go v0.15.0 h1:HUPA06n7tEAyLXv+rFuWvk01FKEm2MavLD9VVEQqMCs=
 github.com/torquem-ch/mdbx-go v0.15.0/go.mod h1:T2fsoJDVppxfAPTLd1svUgH1kpPmeXdPESmroSHcL1E=
+github.com/torquem-ch/mdbx-go v0.16.0 h1:x4dTXDvy1w9MxjlAX6J3/bDqIqu4XQDqTR/u2jMnTiA=
+github.com/torquem-ch/mdbx-go v0.16.0/go.mod h1:T2fsoJDVppxfAPTLd1svUgH1kpPmeXdPESmroSHcL1E=
 github.com/ttacon/chalk v0.0.0-20160626202418-22c06c80ed31/go.mod h1:onvgF043R+lC5RZ8IT9rBXDaEDnpnw/Cl+HFiw+v/7Q=
 github.com/tv42/httpunix v0.0.0-20191220191345-2ba4b9c3382c/go.mod h1:hzIxponao9Kjc7aWznkXaL4U4TWaDSs8zcsY4Ka08nM=
 github.com/tyler-smith/go-bip39 v1.0.1-0.20181017060643-dbb3b84ba2ef/go.mod h1:sJ5fKU0s6JVwZjjcUEX2zFOnvq0ASQ2K9Zr6cf67kNs=
diff --git a/turbo/cli/flags.go b/turbo/cli/flags.go
index 3c330e0a6..6b5fbfb20 100644
--- a/turbo/cli/flags.go
+++ b/turbo/cli/flags.go
@@ -220,7 +220,7 @@ func ApplyFlagsForNodeConfig(ctx *cli.Context, cfg *node.Config) {
 func setPrivateApi(ctx *cli.Context, cfg *node.Config) {
 	cfg.PrivateApiAddr = ctx.GlobalString(PrivateApiAddr.Name)
 	cfg.PrivateApiRateLimit = uint32(ctx.GlobalUint64(PrivateApiRateLimit.Name))
-	maxRateLimit := uint32(ethdb.ReadersLimit - 16)
+	maxRateLimit := uint32(ethdb.ReadersLimit - 128) // leave some readers for P2P
 	if cfg.PrivateApiRateLimit > maxRateLimit {
 		log.Warn("private.api.ratelimit is too big", "force", maxRateLimit)
 		cfg.PrivateApiRateLimit = maxRateLimit