diff --git a/go.mod b/go.mod
index 79dabb836..6dc50a1aa 100644
--- a/go.mod
+++ b/go.mod
@@ -10,7 +10,7 @@ require (
 	// like https://github.com/valyala/fasthttp/commit/996610f021ff45fdc98c2ce7884d5fa4e7f9199b
 	github.com/VictoriaMetrics/fasthttp v1.1.0
 	github.com/VictoriaMetrics/metrics v1.18.1
-	github.com/VictoriaMetrics/metricsql v0.44.0
+	github.com/VictoriaMetrics/metricsql v0.44.1
 	github.com/aws/aws-sdk-go v1.44.43
 	github.com/cespare/xxhash/v2 v2.1.2
 
diff --git a/go.sum b/go.sum
index 7076687a4..566cfbd28 100644
--- a/go.sum
+++ b/go.sum
@@ -108,8 +108,8 @@ github.com/VictoriaMetrics/fasthttp v1.1.0 h1:3crd4YWHsMwu60GUXRH6OstowiFvqrwS4a
 github.com/VictoriaMetrics/fasthttp v1.1.0/go.mod h1:/7DMcogqd+aaD3G3Hg5kFgoFwlR2uydjiWvoLp5ZTqQ=
 github.com/VictoriaMetrics/metrics v1.18.1 h1:OZ0+kTTto8oPfHnVAnTOoyl0XlRhRkoQrD2n2cOuRw0=
 github.com/VictoriaMetrics/metrics v1.18.1/go.mod h1:ArjwVz7WpgpegX/JpB0zpNF2h2232kErkEnzH1sxMmA=
-github.com/VictoriaMetrics/metricsql v0.44.0 h1:zxBVeg9tbm6zl2ft2Ica87ItUWYey02hy3MN2ti1ljg=
-github.com/VictoriaMetrics/metricsql v0.44.0/go.mod h1:6pP1ZeLVJHqJrHlF6Ij3gmpQIznSsgktEcZgsAWYel0=
+github.com/VictoriaMetrics/metricsql v0.44.1 h1:qGoRt0g84uMUscVjS7P3uDZKmjJubWKaIx9v0iHKgck=
+github.com/VictoriaMetrics/metricsql v0.44.1/go.mod h1:6pP1ZeLVJHqJrHlF6Ij3gmpQIznSsgktEcZgsAWYel0=
 github.com/VividCortex/ewma v1.2.0 h1:f58SaIzcDXrSy3kWaHNvuJgJ3Nmz59Zji6XoJR/q1ow=
 github.com/VividCortex/ewma v1.2.0/go.mod h1:nz4BbCtbLyFDeC9SUHbtcT5644juEuWfUAUnGx7j5l4=
 github.com/VividCortex/gohistogram v1.0.0/go.mod h1:Pf5mBqqDxYaXu3hDrrU+w6nw50o/4+TcAqDqk/vUH7g=
diff --git a/vendor/github.com/VictoriaMetrics/metricsql/regexp_cache.go b/vendor/github.com/VictoriaMetrics/metricsql/regexp_cache.go
index d41e1fc08..e9d49bb16 100644
--- a/vendor/github.com/VictoriaMetrics/metricsql/regexp_cache.go
+++ b/vendor/github.com/VictoriaMetrics/metricsql/regexp_cache.go
@@ -60,13 +60,6 @@ type regexpCacheValue struct {
 	err error
 }
 
-func (rcv *regexpCacheValue) RegexpLen() int {
-	if r := rcv.r; r != nil {
-		return len(r.String())
-	}
-	return len(rcv.err.Error())
-}
-
 type regexpCache struct {
 	// Move atomic counters to the top of struct for 8-byte alignment on 32-bit arch.
 	// See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/212
@@ -131,10 +124,10 @@ func (rc *regexpCache) Put(regexp string, rcv *regexpCacheValue) {
 	if rc.charsCurrent > rc.charsLimit {
 		// Remove items accounting for 10% chars from the cache.
 		overflow := int(float64(rc.charsLimit) * 0.1)
-		for k, v := range rc.m {
+		for k := range rc.m {
 			delete(rc.m, k)
 
-			size := len(k) + v.RegexpLen()
+			size := len(k)
 			overflow -= size
 			rc.charsCurrent -= size
 
@@ -144,6 +137,6 @@ func (rc *regexpCache) Put(regexp string, rcv *regexpCacheValue) {
 		}
 	}
 	rc.m[regexp] = rcv
-	rc.charsCurrent += len(regexp) + rcv.RegexpLen()
+	rc.charsCurrent += len(regexp)
 	rc.mu.Unlock()
 }
diff --git a/vendor/modules.txt b/vendor/modules.txt
index a8814f5c6..d42054ede 100644
--- a/vendor/modules.txt
+++ b/vendor/modules.txt
@@ -27,7 +27,7 @@ github.com/VictoriaMetrics/fasthttp/stackless
 # github.com/VictoriaMetrics/metrics v1.18.1
 ## explicit; go 1.12
 github.com/VictoriaMetrics/metrics
-# github.com/VictoriaMetrics/metricsql v0.44.0
+# github.com/VictoriaMetrics/metricsql v0.44.1
 ## explicit; go 1.13
 github.com/VictoriaMetrics/metricsql
 github.com/VictoriaMetrics/metricsql/binaryop