diff --git a/src/Console/Command/Compile.php b/src/Console/Command/Compile.php
index 2fc7a6581..adfb9b775 100644
--- a/src/Console/Command/Compile.php
+++ b/src/Console/Command/Compile.php
@@ -209,7 +209,7 @@ protected function executeCommand(IO $io): int
             return $this->generateDockerFile($io);
         }
 
-        return 0;
+        return self::SUCCESS;
     }
 
     private function createPhar(
diff --git a/src/Console/Command/Diff.php b/src/Console/Command/Diff.php
index 39b52c7d4..4ffbb5c5c 100644
--- a/src/Console/Command/Diff.php
+++ b/src/Console/Command/Diff.php
@@ -126,7 +126,7 @@ protected function executeCommand(IO $io): int
                 ),
             );
 
-            return 1;
+            return self::FAILURE;
         }
 
         $result1 = $this->compareArchives($diff, $io);
@@ -166,7 +166,7 @@ private function compareArchives(PharDiff $diff, IO $io): int
         if ($pharInfoA->equals($pharInfoB)) {
             $io->success('The two archives are identical');
 
-            return 0;
+            return self::SUCCESS;
         }
 
         self::renderArchive(
@@ -183,7 +183,7 @@ private function compareArchives(PharDiff $diff, IO $io): int
             $io,
         );
 
-        return 1;
+        return self::FAILURE;
     }
 
     private function compareContents(PharDiff $diff, IO $io): int
@@ -207,14 +207,14 @@ private function compareContents(PharDiff $diff, IO $io): int
         if (null === $diffResult || [[], []] === $diffResult) {
             $io->success('The contents are identical');
 
-            return 0;
+            return self::SUCCESS;
         }
 
         if (is_string($diffResult)) {
             // Git or GNU diff: we don't have much control on the format
             $io->writeln($diffResult);
 
-            return 1;
+            return self::FAILURE;
         }
 
         $io->writeln(sprintf(
@@ -266,7 +266,7 @@ private function compareContents(PharDiff $diff, IO $io): int
             count($diffResult[0]) + count($diffResult[1]),
         ));
 
-        return 1;
+        return self::FAILURE;
     }
 
     private static function renderArchive(string $fileName, PharInfo $pharInfo, IO $io): void
diff --git a/src/Console/Command/Extract.php b/src/Console/Command/Extract.php
index 399181969..d64109f5f 100644
--- a/src/Console/Command/Extract.php
+++ b/src/Console/Command/Extract.php
@@ -63,13 +63,13 @@ protected function executeCommand(IO $io): int
         $outputDir = $io->getInput()->getArgument(self::OUTPUT_ARG);
 
         if (null === $filePath) {
-            return 1;
+            return self::FAILURE;
         }
 
         [$box, $cleanUpTmpPhar] = $this->getBox($filePath, $io);
 
         if (null === $box) {
-            return 1;
+            return self::FAILURE;
         }
 
         $restoreLimit = bump_open_file_descriptor_limit(count($box), $io);
@@ -84,10 +84,10 @@ protected function executeCommand(IO $io): int
         } catch (RuntimeException $exception) {
             $io->error($exception->getMessage());
 
-            return 1;
+            return self::FAILURE;
         }
 
-        return 0;
+        return self::SUCCESS;
     }
 
     private static function getPharFilePath(IO $io): ?string
diff --git a/src/Console/Command/GenerateDockerFile.php b/src/Console/Command/GenerateDockerFile.php
index 074d8bc43..a2a53f06d 100644
--- a/src/Console/Command/GenerateDockerFile.php
+++ b/src/Console/Command/GenerateDockerFile.php
@@ -61,7 +61,7 @@ protected function executeCommand(IO $io): int
         $pharFilePath = $this->getPharFilePath($io);
 
         if (null === $pharFilePath) {
-            return 1;
+            return self::FAILURE;
         }
 
         Assert::file($pharFilePath);
@@ -174,7 +174,7 @@ private function generateFile(string $pharFilePath, string $requirementsPhar, IO
                 .'requirement checker enabled.',
             );
 
-            return 1;
+            return self::FAILURE;
         }
 
         $requirements = include $requirementsPhar;
@@ -196,7 +196,7 @@ private function generateFile(string $pharFilePath, string $requirementsPhar, IO
             if (false === $remove) {
                 $io->writeln('Skipped the docker file generation.');
 
-                return 0;
+                return self::SUCCESS;
             }
         }
 
@@ -214,6 +214,6 @@ private function generateFile(string $pharFilePath, string $requirementsPhar, IO
             ],
         );
 
-        return 0;
+        return self::SUCCESS;
     }
 }
diff --git a/src/Console/Command/Info.php b/src/Console/Command/Info.php
index e747755dc..4b903bed5 100644
--- a/src/Console/Command/Info.php
+++ b/src/Console/Command/Info.php
@@ -139,7 +139,7 @@ public function executeCommand(IO $io): int
                 ),
             );
 
-            return 1;
+            return self::FAILURE;
         }
 
         $tmpFile = create_temporary_phar($fileRealPath);
@@ -179,7 +179,7 @@ public function showInfo(string $file, string $originalFile, IO $io): int
                 ),
             );
 
-            return 1;
+            return self::FAILURE;
         }
     }
 
@@ -213,7 +213,7 @@ private static function showGlobalInfo(IO $io): int
         $io->newLine();
         $io->comment('Get a PHAR details by giving its path as an argument.');
 
-        return 0;
+        return self::SUCCESS;
     }
 
     private function showPharInfo(
@@ -240,7 +240,7 @@ private function showPharInfo(
             $io->comment('Use the <info>--list|-l</info> option to list the content of the PHAR.');
         }
 
-        return 0;
+        return self::SUCCESS;
     }
 
     private function showPharMeta(PharInfo $pharInfo, IO $io): void
diff --git a/src/Console/Command/Process.php b/src/Console/Command/Process.php
index 5dfb9c03d..2c5d61777 100644
--- a/src/Console/Command/Process.php
+++ b/src/Console/Command/Process.php
@@ -157,7 +157,7 @@ protected function executeCommand(IO $io): int
             }
         }
 
-        return 0;
+        return self::SUCCESS;
     }
 
     private static function retrieveCompactors(Configuration $config): Compactors