diff --git a/config/activitylog.php b/config/activitylog.php
index 27cd6aa..2264480 100755
--- a/config/activitylog.php
+++ b/config/activitylog.php
@@ -9,7 +9,7 @@ return [
     /*
      * If set to false, no activities will be saved to the database.
      */
-    'enabled' => env('ACTIVITYLOG_ENABLED', true),
+    'enabled' => (bool) env('ACTIVITYLOG_ENABLED', true),
 
     /*
      * When the clean command is executed, all recording activities older than
@@ -59,7 +59,7 @@ return [
      * buffer is flushed.
      */
     'buffer' => [
-        'enabled' => env('ACTIVITYLOG_BUFFER_ENABLED', false),
+        'enabled' => (bool) env('ACTIVITYLOG_BUFFER_ENABLED', false),
     ],
 
     /*
diff --git a/config/database.php b/config/database.php
index 751c5bf..924c4f4 100755
--- a/config/database.php
+++ b/config/database.php
@@ -37,7 +37,7 @@ return [
             'url' => env('DB_URL'),
             'database' => env('DB_DATABASE', database_path('database.sqlite')),
             'prefix' => '',
-            'foreign_key_constraints' => env('DB_FOREIGN_KEYS', true),
+            'foreign_key_constraints' => (bool) env('DB_FOREIGN_KEYS', true),
         ],
 
         'mysql' => [
@@ -159,7 +159,7 @@ return [
             'port' => env('REDIS_PORT', '6379'),
             'database' => env('DB_REDIS_DB', '0'),
             'read_timeout' => env('REDIS_READ_TIMEOUT', 1.0),
-            'persistent' => env('REDIS_PERSISTENT', true),
+            'persistent' => (bool) env('REDIS_PERSISTENT', true),
         ],
 
         'cache' => [
@@ -170,7 +170,7 @@ return [
             'port' => env('REDIS_PORT', '6379'),
             'database' => env('REDIS_CACHE_DB', '1'),
             'read_timeout' => env('REDIS_READ_TIMEOUT', 1.0),
-            'persistent' => env('REDIS_PERSISTENT', true),
+            'persistent' => (bool) env('REDIS_PERSISTENT', true),
         ],
 
     ],
diff --git a/config/filesystems.php b/config/filesystems.php
index a51e57d..4ffa531 100755
--- a/config/filesystems.php
+++ b/config/filesystems.php
@@ -38,7 +38,7 @@ return [
             'bucket' => env('AWS_BUCKET'),
             'url' => env('AWS_URL'),
             'endpoint' => env('AWS_ENDPOINT'),
-            'use_path_style_endpoint' => env('AWS_USE_PATH_STYLE_ENDPOINT', false),
+            'use_path_style_endpoint' => (bool) env('AWS_USE_PATH_STYLE_ENDPOINT', false),
             'throw' => false,
         ],
     ],
diff --git a/config/log-viewer.php b/config/log-viewer.php
index 86b54b1..638e98e 100755
--- a/config/log-viewer.php
+++ b/config/log-viewer.php
@@ -16,7 +16,7 @@ return [
     |
     */
 
-    'enabled' => env('LOG_VIEWER_ENABLED', true),
+    'enabled' => (bool) env('LOG_VIEWER_ENABLED', true),
 
     'require_auth_in_production' => true,
 
diff --git a/config/session.php b/config/session.php
index ef36920..79e7bfe 100755
--- a/config/session.php
+++ b/config/session.php
@@ -46,7 +46,7 @@ return [
     |
     */
 
-    'encrypt' => env('SESSION_ENCRYPT', true),
+    'encrypt' => (bool) env('SESSION_ENCRYPT', true),
 
     /*
     |--------------------------------------------------------------------------