diff --git a/CHANGELOG.md b/CHANGELOG.md
index 44b0526a0..e4f1079b1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,11 @@
 All notable changes to this project will be documented in this file.
 
 
+### 0.18.1
+
+- fixing issue during migration.
+
+
 ### 0.18.0 (nc18)
 
 - compat nc18
diff --git a/Makefile b/Makefile
index 3e5296256..ef6eb6c4b 100644
--- a/Makefile
+++ b/Makefile
@@ -8,7 +8,7 @@ package_name=$(app_name)
 cert_dir=$(HOME)/.nextcloud/certificates
 github_account=nextcloud
 branch=master
-version+=0.18.0
+version+=0.18.1
 
 all: appstore
 
diff --git a/appinfo/info.xml b/appinfo/info.xml
index 8b1e83e9f..b9eae989c 100644
--- a/appinfo/info.xml
+++ b/appinfo/info.xml
@@ -23,7 +23,7 @@ Users won't be able to find this Circle using Nextcloud search engine.
 
 		]]>
 	</description>
-	<version>0.18.0</version>
+	<version>0.18.1</version>
 	<licence>agpl</licence>
 	<author>Maxence Lange</author>
 	<documentation>
diff --git a/composer.lock b/composer.lock
index 2b3736402..7ba3f0455 100644
--- a/composer.lock
+++ b/composer.lock
@@ -12,12 +12,12 @@
             "source": {
                 "type": "git",
                 "url": "https://github.com/daita/my-small-php-tools.git",
-                "reference": "23d37b41c4d492604e545c05e0d6abe35eb38cc0"
+                "reference": "688a627c2eed08042a09b50cab7171edde91de27"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/daita/my-small-php-tools/zipball/23d37b41c4d492604e545c05e0d6abe35eb38cc0",
-                "reference": "23d37b41c4d492604e545c05e0d6abe35eb38cc0",
+                "url": "https://api.github.com/repos/daita/my-small-php-tools/zipball/688a627c2eed08042a09b50cab7171edde91de27",
+                "reference": "688a627c2eed08042a09b50cab7171edde91de27",
                 "shasum": ""
             },
             "require": {
@@ -40,7 +40,7 @@
                 }
             ],
             "description": "My small PHP Tools",
-            "time": "2020-01-08T12:11:53+00:00"
+            "time": "2020-01-29T12:34:08+00:00"
         }
     ],
     "packages-dev": [],
diff --git a/lib/Migration/Version0017Date20191206144441.php b/lib/Migration/Version0017Date20191206144441.php
index 2a51d6405..e6a0502a1 100644
--- a/lib/Migration/Version0017Date20191206144441.php
+++ b/lib/Migration/Version0017Date20191206144441.php
@@ -124,7 +124,9 @@ public function changeSchema(IOutput $output, Closure $schemaClosure, array $opt
 								'length'  => 127,
 							]
 			);
-			$table->dropPrimaryKey();
+			if ($table->hasPrimaryKey()) {
+				$table->dropPrimaryKey();
+			}
 			$table->setPrimaryKey(['circle_id', 'user_id', 'contact_id']);
 		}