diff --git a/.htaccess b/.htaccess
index 5b86464356..206d2be33b 100644
--- a/.htaccess
+++ b/.htaccess
@@ -26,8 +26,8 @@
   </FilesMatch>
 </IfModule>
 <IfModule mod_php5.c>
-  php_value upload_max_filesize 513M
-  php_value post_max_size 513M
+  php_value upload_max_filesize 511M
+  php_value post_max_size 511M
   php_value memory_limit 512M
   php_value mbstring.func_overload 0
   php_value always_populate_raw_post_data -1
@@ -38,8 +38,8 @@
   </IfModule>
 </IfModule>
 <IfModule mod_php7.c>
-  php_value upload_max_filesize 513M
-  php_value post_max_size 513M
+  php_value upload_max_filesize 511M
+  php_value post_max_size 511M
   php_value memory_limit 512M
   php_value mbstring.func_overload 0
   php_value default_charset 'UTF-8'
diff --git a/.user.ini b/.user.ini
index 68ef3e8672..fe14834b2e 100644
--- a/.user.ini
+++ b/.user.ini
@@ -1,5 +1,5 @@
-upload_max_filesize=513M
-post_max_size=513M
+upload_max_filesize=511M
+post_max_size=511M
 memory_limit=512M
 mbstring.func_overload=0
 always_populate_raw_post_data=-1
diff --git a/lib/private/IntegrityCheck/Checker.php b/lib/private/IntegrityCheck/Checker.php
index 1db20772b4..102fe42a99 100644
--- a/lib/private/IntegrityCheck/Checker.php
+++ b/lib/private/IntegrityCheck/Checker.php
@@ -195,7 +195,7 @@ class Checker {
 					copy($this->environmentHelper->getServerRoot() . '/.htaccess', $tmpFolder . '/.htaccess');
 					copy($this->environmentHelper->getServerRoot() . '/.user.ini', $tmpFolder . '/.user.ini');
 					\OC_Files::setUploadLimit(
-						\OCP\Util::computerFileSize('513MB'),
+						\OCP\Util::computerFileSize('511MB'),
 						[
 							'.htaccess' => $tmpFolder . '/.htaccess',
 							'.user.ini' => $tmpFolder . '/.user.ini',
diff --git a/tests/lib/FilesTest.php b/tests/lib/FilesTest.php
index 496312708b..1d26984ee7 100644
--- a/tests/lib/FilesTest.php
+++ b/tests/lib/FilesTest.php
@@ -24,7 +24,7 @@ namespace Test;
 
 class FilesTest extends \Test\TestCase {
 
-	const UPLOAD_LIMIT_DEFAULT_STR = '513M';
+	const UPLOAD_LIMIT_DEFAULT_STR = '511M';
 	const UPLOAD_LIMIT_SETTING_STR = '2M';
 	const UPLOAD_LIMIT_SETTING_BYTES = 2097152;
 
diff --git a/tests/lib/IntegrityCheck/CheckerTest.php b/tests/lib/IntegrityCheck/CheckerTest.php
index 5823ac0f25..0e6bd52a5d 100644
--- a/tests/lib/IntegrityCheck/CheckerTest.php
+++ b/tests/lib/IntegrityCheck/CheckerTest.php
@@ -546,11 +546,11 @@ class CheckerTest extends TestCase {
 	public function testWriteCoreSignatureWithValidModifiedHtaccessAndUserIni() {
 		$expectedSignatureFileData = '{
     "hashes": {
-        ".htaccess": "ef34c5f35fffb6e8e3008c2118617b53243cfc5ac2513edba9ebd383169862bc16e4f889316ad65788d6b172fe14713af90908c19838c4ba13b4146e12c7ac62",
-        ".user.ini": "0a557e3cdca4c2e3675deed761d79d109011dcdebbd9c7f6429f1d3476938ec95729543d7384651d1d0c48e26c5024cc5f517445920915a704ea748bdb903c5f",
+        ".htaccess": "9a37a508ad4cc3a7ff668e3cd63177891e5601143fa18bb605346020d5f3cd7979748beab956554aca43ae59ff146755cfe83de0f93a3a7bb328b1395b2ccf2f",
+        ".user.ini": "467d4f028c447895716a2b7859ed6e569f8ee34b87b51d73dab2e6a9ca4fbe63172c7be3e365ae864a60408286afcce852dd38ee544b61685ed4ee5e021fecb0",
         "subfolder\/.htaccess": "2c57b1e25050e11dc3ae975832f378c452159f7b69f818e47eeeafadd6ba568517461dcb4d843b90b906cd7c89d161bc1b89dff8e3ae0eb6f5088508c47befd1"
     },
-    "signature": "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",
+    "signature": "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",
     "certificate": "-----BEGIN CERTIFICATE-----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\r\nV204fGUkJqW5CrKy3P3XvY9X\r\n-----END CERTIFICATE-----"
 }';
 		$this->environmentHelper
@@ -657,11 +657,11 @@ class CheckerTest extends TestCase {
 			->will($this->returnValue(\OC::$SERVERROOT . '/tests/data/integritycheck/htaccessWithValidModifiedContent'));
 		$signatureDataFile = '{
     "hashes": {
-        ".htaccess": "ef34c5f35fffb6e8e3008c2118617b53243cfc5ac2513edba9ebd383169862bc16e4f889316ad65788d6b172fe14713af90908c19838c4ba13b4146e12c7ac62",
-        ".user.ini": "0a557e3cdca4c2e3675deed761d79d109011dcdebbd9c7f6429f1d3476938ec95729543d7384651d1d0c48e26c5024cc5f517445920915a704ea748bdb903c5f",
+        ".htaccess": "9a37a508ad4cc3a7ff668e3cd63177891e5601143fa18bb605346020d5f3cd7979748beab956554aca43ae59ff146755cfe83de0f93a3a7bb328b1395b2ccf2f",
+        ".user.ini": "467d4f028c447895716a2b7859ed6e569f8ee34b87b51d73dab2e6a9ca4fbe63172c7be3e365ae864a60408286afcce852dd38ee544b61685ed4ee5e021fecb0",
         "subfolder\/.htaccess": "2c57b1e25050e11dc3ae975832f378c452159f7b69f818e47eeeafadd6ba568517461dcb4d843b90b906cd7c89d161bc1b89dff8e3ae0eb6f5088508c47befd1"
     },
-    "signature": "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",
+    "signature": "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",
     "certificate": "-----BEGIN CERTIFICATE-----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\r\nV204fGUkJqW5CrKy3P3XvY9X\r\n-----END CERTIFICATE-----"
 }';
 		$this->fileAccessHelper