diff --git a/package.json b/package.json
index 22f883ff..703640ef 100644
--- a/package.json
+++ b/package.json
@@ -193,7 +193,7 @@
     "apollo-link-persisted-queries": "0.2.2",
     "apollo-link-ws": "1.0.19",
     "apollo-utilities": "1.3.2",
-    "autoprefixer": "9.7.0",
+    "autoprefixer": "9.6.4",
     "babel-eslint": "10.0.3",
     "babel-jest": "24.9.0",
     "babel-loader": "^8.0.6",
diff --git a/server/setup.js b/server/setup.js
index e24ea915..ece6288c 100644
--- a/server/setup.js
+++ b/server/setup.js
@@ -189,24 +189,35 @@ module.exports = () => {
       ])
 
       // Truncate tables (reset from previous failed install)
-      if (WIKI.config.db.type !== 'mssql') {
-        await WIKI.models.locales.query().truncate()
-        await WIKI.models.groups.query().truncate()
-        await WIKI.models.users.query().truncate()
-        await WIKI.models.navigation.query().truncate()
-      } else {
-        await WIKI.models.locales.query().del()
-        await WIKI.models.groups.query().del()
-        await WIKI.models.users.query().del()
-        await WIKI.models.navigation.query().truncate()
-        await WIKI.models.knex.raw(`
-          IF EXISTS (SELECT * FROM sys.identity_columns WHERE OBJECT_NAME(OBJECT_ID) = 'groups' AND last_value IS NOT NULL)
-            DBCC CHECKIDENT ([groups], RESEED, 0)
-        `)
-        await WIKI.models.knex.raw(`
-          IF EXISTS (SELECT * FROM sys.identity_columns WHERE OBJECT_NAME(OBJECT_ID) = 'users' AND last_value IS NOT NULL)
-            DBCC CHECKIDENT ([users], RESEED, 0)
-        `)
+      await WIKI.models.locales.query().where('code', '!=', 'x').del()
+      await WIKI.models.navigation.query().truncate()
+      switch (WIKI.config.db.type) {
+        case 'postgres':
+          await WIKI.models.knex.raw('TRUNCATE groups, users CASCADE')
+          break
+        case 'mysql':
+        case 'mariadb':
+          await WIKI.models.groups.query().where('id', '>', 0).del()
+          await WIKI.models.users.query().where('id', '>', 0).del()
+          await WIKI.models.knex.raw('ALTER TABLE groups AUTO_INCREMENT = 1')
+          await WIKI.models.knex.raw('ALTER TABLE users AUTO_INCREMENT = 1')
+          break
+        case 'mssql':
+          await WIKI.models.groups.query().del()
+          await WIKI.models.users.query().del()
+          await WIKI.models.knex.raw(`
+            IF EXISTS (SELECT * FROM sys.identity_columns WHERE OBJECT_NAME(OBJECT_ID) = 'groups' AND last_value IS NOT NULL)
+              DBCC CHECKIDENT ([groups], RESEED, 0)
+          `)
+          await WIKI.models.knex.raw(`
+            IF EXISTS (SELECT * FROM sys.identity_columns WHERE OBJECT_NAME(OBJECT_ID) = 'users' AND last_value IS NOT NULL)
+              DBCC CHECKIDENT ([users], RESEED, 0)
+          `)
+          break
+        case 'sqlite':
+          await WIKI.models.groups.query().truncate()
+          await WIKI.models.users.query().truncate()
+          break
       }
 
       // Create default locale
diff --git a/yarn.lock b/yarn.lock
index 80c91604..7ffbbe37 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2616,17 +2616,17 @@ auto-load@3.0.4:
   resolved "https://registry.yarnpkg.com/auto-load/-/auto-load-3.0.4.tgz#57efe1bd7ed2144992e6fcfb3bc100db13de4a0e"
   integrity sha512-ufENezHsnouUiIgwCMuqzcdiABBucBb8CV/5uchw9XuMhf8KXIqF3PgxRzhIuW3C470gjb5niq6zaaF9nhjPIQ==
 
-autoprefixer@9.7.0:
-  version "9.7.0"
-  resolved "https://registry.yarnpkg.com/autoprefixer/-/autoprefixer-9.7.0.tgz#905ec19e50f04545fe9ff131182cc9ab25246901"
-  integrity sha512-j2IRvaCfrUxIiZun9ba4mhJ2omhw4OY88/yVzLO+lHhGBumAAK72PgM6gkbSN8iregPOn1ZlxGkmZh2CQ7X4AQ==
+autoprefixer@9.6.4:
+  version "9.6.4"
+  resolved "https://registry.yarnpkg.com/autoprefixer/-/autoprefixer-9.6.4.tgz#e6453be47af316b2923eaeaed87860f52ad4b7eb"
+  integrity sha512-Koz2cJU9dKOxG8P1f8uVaBntOv9lP4yz9ffWvWaicv9gHBPhpQB22nGijwd8gqW9CNT+UdkbQOQNLVI8jN1ZfQ==
   dependencies:
-    browserslist "^4.7.2"
-    caniuse-lite "^1.0.30001004"
+    browserslist "^4.7.0"
+    caniuse-lite "^1.0.30000998"
     chalk "^2.4.2"
     normalize-range "^0.1.2"
     num2fraction "^1.2.2"
-    postcss "^7.0.19"
+    postcss "^7.0.18"
     postcss-value-parser "^4.0.2"
 
 autoprefixer@^7.1.1:
@@ -3127,7 +3127,7 @@ browserslist@^4.0.0, browserslist@^4.6.0, browserslist@^4.6.3, browserslist@^4.6
     electron-to-chromium "^1.3.247"
     node-releases "^1.1.29"
 
-browserslist@^4.7.2:
+browserslist@^4.7.0, browserslist@^4.7.2:
   version "4.7.2"
   resolved "https://registry.yarnpkg.com/browserslist/-/browserslist-4.7.2.tgz#1bb984531a476b5d389cedecb195b2cd69fb1348"
   integrity sha512-uZavT/gZXJd2UTi9Ov7/Z340WOSQ3+m1iBVRUknf+okKxonL9P83S3ctiBDtuRmRu8PiCHjqyueqQ9HYlJhxiw==
@@ -3388,7 +3388,7 @@ caniuse-lite@^1.0.0, caniuse-lite@^1.0.30000792, caniuse-lite@^1.0.30000805, can
   resolved "https://registry.yarnpkg.com/caniuse-lite/-/caniuse-lite-1.0.30000989.tgz#b9193e293ccf7e4426c5245134b8f2a56c0ac4b9"
   integrity sha512-vrMcvSuMz16YY6GSVZ0dWDTJP8jqk3iFQ/Aq5iqblPwxSVVZI+zxDyTX0VPqtQsDnfdrBDcsmhgTEOh5R8Lbpw==
 
-caniuse-lite@^1.0.30001004:
+caniuse-lite@^1.0.30000998, caniuse-lite@^1.0.30001004:
   version "1.0.30001004"
   resolved "https://registry.yarnpkg.com/caniuse-lite/-/caniuse-lite-1.0.30001004.tgz#d879b73981b255488316da946c39327d8c00a586"
   integrity sha512-3nfOR4O8Wa2RWoYfJkMtwRVOsK96TQ+eq57wd0iKaEWl8dwG4hKZ/g0MVBfCvysFvMLi9fQGR/DvozMdkEPl3g==
@@ -10907,7 +10907,7 @@ postcss@^7.0.0, postcss@^7.0.1, postcss@^7.0.14, postcss@^7.0.16, postcss@^7.0.1
     source-map "^0.6.1"
     supports-color "^6.1.0"
 
-postcss@^7.0.19:
+postcss@^7.0.18:
   version "7.0.21"
   resolved "https://registry.yarnpkg.com/postcss/-/postcss-7.0.21.tgz#06bb07824c19c2021c5d056d5b10c35b989f7e17"
   integrity sha512-uIFtJElxJo29QC753JzhidoAhvp/e/Exezkdhfmt8AymWT6/5B7W1WmponYWkHk2eg6sONyTch0A3nkMPun3SQ==