diff --git a/pkg/detector/ospkg/amazon/amazon.go b/pkg/detector/ospkg/amazon/amazon.go
index 0846e24c3dcb..0c5a35f13a8f 100644
--- a/pkg/detector/ospkg/amazon/amazon.go
+++ b/pkg/detector/ospkg/amazon/amazon.go
@@ -44,6 +44,8 @@ func (s *Scanner) Detect(osVer string, _ *ftypes.Repository, pkgs []ftypes.Packa
 	log.Logger.Info("Detecting Amazon Linux vulnerabilities...")
 
 	osVer = strings.Fields(osVer)[0]
+	// The format `2023.xxx.xxxx` can be used.
+	osVer = osver.Major(osVer)
 	if osVer != "2" && osVer != "2022" && osVer != "2023" {
 		osVer = "1"
 	}
@@ -97,6 +99,8 @@ func (s *Scanner) Detect(osVer string, _ *ftypes.Repository, pkgs []ftypes.Packa
 // IsSupportedVersion checks if the version is supported.
 func (s *Scanner) IsSupportedVersion(ctx context.Context, osFamily ftypes.OSType, osVer string) bool {
 	osVer = strings.Fields(osVer)[0]
+	// The format `2023.xxx.xxxx` can be used.
+	osVer = osver.Major(osVer)
 	if osVer != "2" && osVer != "2022" && osVer != "2023" {
 		osVer = "1"
 	}
diff --git a/pkg/detector/ospkg/amazon/amazon_test.go b/pkg/detector/ospkg/amazon/amazon_test.go
index 1fa65f0598fb..c9c5a3c65840 100644
--- a/pkg/detector/ospkg/amazon/amazon_test.go
+++ b/pkg/detector/ospkg/amazon/amazon_test.go
@@ -108,7 +108,7 @@ func TestScanner_Detect(t *testing.T) {
 				"testdata/fixtures/data-source.yaml",
 			},
 			args: args{
-				osVer: "2023",
+				osVer: "2023.3.20240304",
 				pkgs: []ftypes.Package{
 					{
 						Name:    "protobuf",