diff --git a/src/Configuration/Configuration.php b/src/Configuration/Configuration.php
index d66a22361..2495110b8 100644
--- a/src/Configuration/Configuration.php
+++ b/src/Configuration/Configuration.php
@@ -109,7 +109,7 @@ final class Configuration
         'finder',
     ];
     private const PHP_SCOPER_CONFIG = 'scoper.inc.php';
-    private const DEFAULT_SIGNING_ALGORITHM = SigningAlgorithm::SHA1;
+    private const DEFAULT_SIGNING_ALGORITHM = SigningAlgorithm::SHA512;
     private const DEFAULT_ALIAS_PREFIX = 'box-auto-generated-alias-';
 
     private const DEFAULT_IGNORED_ANNOTATIONS = [
diff --git a/tests/Configuration/ConfigurationTest.php b/tests/Configuration/ConfigurationTest.php
index 1ddeeb2dc..6a290f795 100644
--- a/tests/Configuration/ConfigurationTest.php
+++ b/tests/Configuration/ConfigurationTest.php
@@ -2986,7 +2986,7 @@ public function test_it_can_be_created_with_only_default_values(): void
         self::assertNull($this->config->getPrivateKeyPath());
         self::assertSame([], $this->config->getReplacements());
         self::assertSame('#!/usr/bin/env php', $this->config->getShebang());
-        self::assertSame(SigningAlgorithm::SHA1, $this->config->getSigningAlgorithm());
+        self::assertSame(SigningAlgorithm::SHA512, $this->config->getSigningAlgorithm());
 
         $version = self::$version;
 
@@ -3096,7 +3096,7 @@ public function test_it_can_be_exported(): void
               -promptForPrivateKey: false
               -processedReplacements: []
               -shebang: "#!/usr/bin/env php"
-              -signingAlgorithm: "SHA1"
+              -signingAlgorithm: "SHA512"
               -stubBannerContents: "My banner"
               -stubBannerPath: null
               -stubPath: null
diff --git a/tests/Console/Command/CompileTest.php b/tests/Console/Command/CompileTest.php
index e70348813..33f53ddfe 100644
--- a/tests/Console/Command/CompileTest.php
+++ b/tests/Console/Command/CompileTest.php
@@ -478,7 +478,7 @@ public function test_it_can_build_a_phar_without_any_configuration(): void
 
         $phar = new Phar('index.phar');
 
-        self::assertSame('SHA-1', $phar->getSignature()['hash_type']);
+        self::assertSame('SHA-512', $phar->getSignature()['hash_type']);
 
         // Check PHAR content
         $actualStub = self::normalizeStub($phar->getStub());
@@ -1227,7 +1227,7 @@ public function test_it_can_build_a_phar_file_in_debug_mode(): void
               -promptForPrivateKey: false
               -processedReplacements: []
               -shebang: "#!/usr/bin/env php"
-              -signingAlgorithm: "SHA1"
+              -signingAlgorithm: "SHA512"
               -stubBannerContents: ""
               -stubBannerPath: null
               -stubPath: null