diff --git a/.changeset/soft-kids-watch.md b/.changeset/soft-kids-watch.md
new file mode 100644
index 0000000..3f34ccd
--- /dev/null
+++ b/.changeset/soft-kids-watch.md
@@ -0,0 +1,5 @@
+---
+'grafana-zabbix': patch
+---
+
+Fix: Remove regex pattern length restriction
diff --git a/pkg/zabbix/utils.go b/pkg/zabbix/utils.go
index 6afa87e..e97657b 100644
--- a/pkg/zabbix/utils.go
+++ b/pkg/zabbix/utils.go
@@ -155,11 +155,6 @@ func parseFilter(filter string) (*regexp2.Regexp, error) {
 		return nil, backend.DownstreamErrorf("error parsing regexp: potentially dangerous regex pattern detected")
 	}
 
-	// Security: Limit regex pattern length
-	if len(regexPattern) > 1000 {
-		return nil, backend.DownstreamErrorf("error parsing regexp: pattern too long (max 1000 characters)")
-	}
-
 	pattern := ""
 	if matches[2] != "" {
 		if flagRE.MatchString(matches[2]) {
diff --git a/pkg/zabbix/utils_test.go b/pkg/zabbix/utils_test.go
index 02e6f37..697a39f 100644
--- a/pkg/zabbix/utils_test.go
+++ b/pkg/zabbix/utils_test.go
@@ -2,7 +2,6 @@ package zabbix
 
 import (
 	"reflect"
-	"strings"
 	"testing"
 
 	"github.com/dlclark/regexp2"
@@ -124,13 +123,6 @@ func TestParseFilter(t *testing.T) {
 			expectNoError: false,
 			expectedError: "error parsing regexp: potentially dangerous regex pattern detected",
 		},
-		{
-			name:          "Pattern too long",
-			filter:        "/" + strings.Repeat("a", 1001) + "/",
-			want:          nil,
-			expectNoError: false,
-			expectedError: "error parsing regexp: pattern too long (max 1000 characters)",
-		},
 		{
 			name:          "Safe complex regex",
 			filter:        "/^[a-zA-Z0-9_-]+\\.[a-zA-Z]{2,}$/",