diff --git a/app/vmalert/config/config.go b/app/vmalert/config/config.go
index f027dad59..cd40af7af 100644
--- a/app/vmalert/config/config.go
+++ b/app/vmalert/config/config.go
@@ -41,7 +41,7 @@ func (g *Group) UnmarshalYAML(unmarshal func(interface{}) error) error {
 	}
 	b, err := yaml.Marshal(g)
 	if err != nil {
-		return fmt.Errorf("failed to marshal group configuration for checksum: %s", err)
+		return fmt.Errorf("failed to marshal group configuration for checksum: %w", err)
 	}
 	h := md5.New()
 	h.Write(b)
diff --git a/app/vmstorage/transport/server.go b/app/vmstorage/transport/server.go
index cc5bdecbc..ea6f52fea 100644
--- a/app/vmstorage/transport/server.go
+++ b/app/vmstorage/transport/server.go
@@ -724,7 +724,7 @@ func (s *Server) processVMSelectTagValueSuffixes(ctx *vmselectRequestCtx) error
 	tagValuePrefix := append([]byte{}, ctx.dataBuf...)
 	delimiter, err := ctx.readByte()
 	if err != nil {
-		return fmt.Errorf("cannot read delimiter: %s", err)
+		return fmt.Errorf("cannot read delimiter: %w", err)
 	}
 
 	// Search for tag value suffixes
diff --git a/lib/promscrape/discovery/ec2/api_test.go b/lib/promscrape/discovery/ec2/api_test.go
index a37c33ce5..b067880b1 100644
--- a/lib/promscrape/discovery/ec2/api_test.go
+++ b/lib/promscrape/discovery/ec2/api_test.go
@@ -114,7 +114,7 @@ func TestParseARNCredentialsSuccess(t *testing.T) {
 func mustParseRFC3339(s string) time.Time {
 	expTime, err := time.Parse(time.RFC3339, s)
 	if err != nil {
-		panic(fmt.Errorf("unexpected error when parsing time from %q: %s", s, err))
+		panic(fmt.Errorf("unexpected error when parsing time from %q: %w", s, err))
 	}
 	return expTime
 }