diff --git a/checksum/checksum.go b/checksum/checksum.go
index 741ed25..0ab075a 100644
--- a/checksum/checksum.go
+++ b/checksum/checksum.go
@@ -119,8 +119,9 @@ func WithOS(os string) ValidatorOption {
 }
 
 var fallbackArchMap = map[string][]string{
-	"amd64": {"x86_64", "all"},
+	"amd64": {"x86_64"},
 	"386":   {"i386", "all"},
+	"arm64": {"all"},
 }
 
 func WithArch(a string) ValidatorOption {
diff --git a/upgrade.go b/upgrade.go
index f8ab5cd..6c5675c 100644
--- a/upgrade.go
+++ b/upgrade.go
@@ -58,8 +58,9 @@ func NewUpgrader(owner string, repo string, executablePath string, opts ...Opt)
 		executablePath: executablePath,
 		releaseGetter:  release.NewReleaseGetter(repo, owner),
 		assetDownloader: asset.NewAssetDownloader(executablePath, asset.WithLookupArchFallback(map[string][]string{
-			"amd64": {"x86_64", "all"},
+			"amd64": {"x86_64"},
 			"386":   {"i86", "all"},
+			"arm64": {"all"},
 		})),
 		checksumDownloader: checksum.NewCheckSumDownloader(),
 		checksumValidator:  checksum.NewCheckSumValidator(),