diff --git a/modules/log/event_writer_base.go b/modules/log/event_writer_base.go
index b8b13e4bc4..c327c48ca2 100644
--- a/modules/log/event_writer_base.go
+++ b/modules/log/event_writer_base.go
@@ -90,7 +90,7 @@ func (b *EventWriterBaseImpl) Run(ctx context.Context) {
 
 			if exprRegexp != nil {
 				fileLineCaller := fmt.Sprintf("%s:%d:%s", event.Origin.Filename, event.Origin.Line, event.Origin.Caller)
-				matched := exprRegexp.Match([]byte(fileLineCaller)) || exprRegexp.Match([]byte(event.Origin.MsgSimpleText))
+				matched := exprRegexp.MatchString(fileLineCaller) || exprRegexp.MatchString(event.Origin.MsgSimpleText)
 				if !matched {
 					continue
 				}
diff --git a/services/packages/rpm/repository.go b/services/packages/rpm/repository.go
index 774613509e..cfd70ec23e 100644
--- a/services/packages/rpm/repository.go
+++ b/services/packages/rpm/repository.go
@@ -232,7 +232,7 @@ func buildRepomd(pv *packages_model.PackageVersion, ownerID int64, data []*repoD
 	}
 
 	var buf bytes.Buffer
-	buf.Write([]byte(xml.Header))
+	buf.WriteString(xml.Header)
 	if err := xml.NewEncoder(&buf).Encode(&Repomd{
 		Xmlns:    "http://linux.duke.edu/metadata/repo",
 		XmlnsRpm: "http://linux.duke.edu/metadata/rpm",
diff --git a/services/pull/pull.go b/services/pull/pull.go
index 0b6194b143..d4352abafe 100644
--- a/services/pull/pull.go
+++ b/services/pull/pull.go
@@ -755,11 +755,11 @@ func GetSquashMergeCommitMessages(ctx context.Context, pr *issues_model.PullRequ
 	}
 
 	for _, author := range authors {
-		if _, err := stringBuilder.Write([]byte("Co-authored-by: ")); err != nil {
+		if _, err := stringBuilder.WriteString("Co-authored-by: "); err != nil {
 			log.Error("Unable to write to string builder Error: %v", err)
 			return ""
 		}
-		if _, err := stringBuilder.Write([]byte(author)); err != nil {
+		if _, err := stringBuilder.WriteString(author); err != nil {
 			log.Error("Unable to write to string builder Error: %v", err)
 			return ""
 		}