diff --git a/src/Configurator.php b/src/Configurator.php
index 56976823b..444abb86a 100644
--- a/src/Configurator.php
+++ b/src/Configurator.php
@@ -104,7 +104,7 @@ public function unconfigure(Recipe $recipe, Lock $lock)
     private function get($key): AbstractConfigurator
     {
         if (!isset($this->configurators[$key]) && !isset($this->postInstallConfigurators[$key])) {
-            throw new \InvalidArgumentException(sprintf('Unknown configurator "%s".', $key));
+            throw new \InvalidArgumentException(\sprintf('Unknown configurator "%s".', $key));
         }
 
         if (isset($this->cache[$key])) {
diff --git a/src/Configurator/EnvConfigurator.php b/src/Configurator/EnvConfigurator.php
index 97c62d6f0..4c252fd2f 100644
--- a/src/Configurator/EnvConfigurator.php
+++ b/src/Configurator/EnvConfigurator.php
@@ -143,12 +143,12 @@ private function unconfigureEnvFiles(Recipe $recipe, $vars)
                 continue;
             }
 
-            $contents = preg_replace(sprintf('{%s*###> %s ###.*###< %s ###%s+}s', "\n", $recipe->getName(), $recipe->getName(), "\n"), "\n", file_get_contents($env), -1, $count);
+            $contents = preg_replace(\sprintf('{%s*###> %s ###.*###< %s ###%s+}s', "\n", $recipe->getName(), $recipe->getName(), "\n"), "\n", file_get_contents($env), -1, $count);
             if (!$count) {
                 continue;
             }
 
-            $this->write(sprintf('Removing environment variables from %s', $file));
+            $this->write(\sprintf('Removing environment variables from %s', $file));
             file_put_contents($env, $contents);
         }
     }
@@ -161,12 +161,12 @@ private function unconfigurePhpUnit(Recipe $recipe, $vars)
                 continue;
             }
 
-            $contents = preg_replace(sprintf('{%s*\s+<!-- ###\+ %s ### -->.*<!-- ###- %s ### -->%s+}s', "\n", $recipe->getName(), $recipe->getName(), "\n"), "\n", file_get_contents($phpunit), -1, $count);
+            $contents = preg_replace(\sprintf('{%s*\s+<!-- ###\+ %s ### -->.*<!-- ###- %s ### -->%s+}s', "\n", $recipe->getName(), $recipe->getName(), "\n"), "\n", file_get_contents($phpunit), -1, $count);
             if (!$count) {
                 continue;
             }
 
-            $this->write(sprintf('Removing environment variables from %s', $file));
+            $this->write(\sprintf('Removing environment variables from %s', $file));
             file_put_contents($phpunit, $contents);
         }
     }
@@ -265,7 +265,7 @@ private function findExistingValue(string $var, string $filename, Recipe $recipe
 
         $lines = explode("\n", $section);
         foreach ($lines as $line) {
-            if (0 !== strpos($line, sprintf('%s=', $var))) {
+            if (!str_starts_with($line, \sprintf('%s=', $var))) {
                 continue;
             }