diff --git a/internal/sql/provider.go b/internal/sql/provider.go
index 9272372..bea14fa 100644
--- a/internal/sql/provider.go
+++ b/internal/sql/provider.go
@@ -85,13 +85,13 @@ func (p *Provider) Get(id []byte) ([]byte, error) {
 func (p *Provider) Save(id, data []byte, expiration time.Duration) error {
 	now := time.Now().UnixNano()
 
-	n, err := p.Exec(p.config.SQLSave, gotils.B2S(data), now, expiration.Seconds(), gotils.B2S(id))
+	n, err := p.Exec(p.config.SQLSave, gotils.B2S(data), now, expiration.Nanoseconds(), gotils.B2S(id))
 	if err != nil {
 		return err
 	}
 
 	if n == 0 { // Not exist
-		_, err = p.Exec(p.config.SQLInsert, gotils.B2S(id), gotils.B2S(data), now, expiration.Seconds())
+		_, err = p.Exec(p.config.SQLInsert, gotils.B2S(id), gotils.B2S(data), now, expiration.Nanoseconds())
 		if err != nil {
 			return err
 		}
@@ -105,13 +105,13 @@ func (p *Provider) Save(id, data []byte, expiration time.Duration) error {
 func (p *Provider) Regenerate(id, newID []byte, expiration time.Duration) error {
 	now := time.Now().UnixNano()
 
-	n, err := p.Exec(p.config.SQLRegenerate, gotils.B2S(newID), now, expiration.Seconds(), gotils.B2S(id))
+	n, err := p.Exec(p.config.SQLRegenerate, gotils.B2S(newID), now, expiration.Nanoseconds(), gotils.B2S(id))
 	if err != nil {
 		return err
 	}
 
 	if n == 0 { // Not exist
-		_, err = p.Exec(p.config.SQLInsert, gotils.B2S(newID), "", now, expiration.Seconds())
+		_, err = p.Exec(p.config.SQLInsert, gotils.B2S(newID), "", now, expiration.Nanoseconds())
 		if err != nil {
 			return err
 		}
diff --git a/providers/memory/provider.go b/providers/memory/provider.go
index c14cb00..337a129 100644
--- a/providers/memory/provider.go
+++ b/providers/memory/provider.go
@@ -51,7 +51,7 @@ func (p *Provider) Get(id []byte) ([]byte, error) {
 func (p *Provider) Save(id, data []byte, expiration time.Duration) error {
 	item := acquireItem()
 	item.data = data
-	item.lastActiveTime = time.Now().Unix()
+	item.lastActiveTime = time.Now().UnixNano()
 	item.expiration = expiration
 
 	p.db.SetBytes(id, item)
@@ -65,7 +65,7 @@ func (p *Provider) Regenerate(id, newID []byte, expiration time.Duration) error
 	data := p.db.GetBytes(id)
 	if data != nil {
 		item := data.(*item)
-		item.lastActiveTime = time.Now().Unix()
+		item.lastActiveTime = time.Now().UnixNano()
 		item.expiration = expiration
 
 		p.db.SetBytes(newID, item)
@@ -100,7 +100,7 @@ func (p *Provider) NeedGC() bool {
 
 // GC destroys the expired sessions
 func (p *Provider) GC() {
-	now := time.Now().Unix()
+	now := time.Now().UnixNano()
 
 	for _, kv := range p.db.D {
 		item := kv.Value.(*item)
@@ -109,7 +109,7 @@ func (p *Provider) GC() {
 			continue
 		}
 
-		if now >= (item.lastActiveTime + int64(item.expiration.Seconds())) {
+		if now >= (item.lastActiveTime + item.expiration.Nanoseconds()) {
 			p.Destroy(kv.Key)
 		}
 	}
diff --git a/providers/mysql/provider.go b/providers/mysql/provider.go
index ddd1aaf..3a206ec 100644
--- a/providers/mysql/provider.go
+++ b/providers/mysql/provider.go
@@ -15,7 +15,7 @@ var initQueries = []string{
 		id VARCHAR(64) NOT NULL DEFAULT '' COMMENT 'Session id',
 		data TEXT NOT NULL COMMENT 'Session data',
 		last_active BIGINT SIGNED NOT NULL DEFAULT '0' COMMENT 'Last active time',
-		expiration INT UNSIGNED NOT NULL DEFAULT '0' COMMENT 'Expiration time',
+		expiration BIGINT UNSIGNED NOT NULL DEFAULT '0' COMMENT 'Expiration time',
 		PRIMARY KEY (id),
 		KEY last_active (last_active),
 		KEY expiration (expiration)
diff --git a/providers/postgre/provider.go b/providers/postgre/provider.go
index b5883e1..a1c4c0f 100644
--- a/providers/postgre/provider.go
+++ b/providers/postgre/provider.go
@@ -15,7 +15,7 @@ var initQueries = []string{
 		id VARCHAR(64) PRIMARY KEY NOT NULL DEFAULT '',
 		data TEXT NOT NULL,
 		last_active BIGINT NOT NULL DEFAULT '0',
-		expiration INT NOT NULL DEFAULT '0'
+		expiration BIGINT NOT NULL DEFAULT '0'
 	);`,
 	"CREATE INDEX last_active ON %s (last_active);",
 	"CREATE INDEX expiration ON %s (expiration);",
diff --git a/providers/sqlite3/provider.go b/providers/sqlite3/provider.go
index 36ef20f..d0dfb1d 100644
--- a/providers/sqlite3/provider.go
+++ b/providers/sqlite3/provider.go
@@ -15,7 +15,7 @@ var initQueries = []string{
 		id VARCHAR(64) PRIMARY KEY NOT NULL DEFAULT '',
 		data TEXT NOT NULL,
 		last_active BIGINT NOT NULL DEFAULT '0',
-		expiration INT NOT NULL DEFAULT '0'
+		expiration BIGINT NOT NULL DEFAULT '0'
 	);`,
 	"CREATE INDEX last_active ON %s (last_active);",
 	"CREATE INDEX expiration ON %s (expiration);",