diff --git a/.github/workflows/clean-vendor.yml b/.github/workflows/clean-vendor.yml
deleted file mode 100644
index 7e61e23d..00000000
--- a/.github/workflows/clean-vendor.yml
+++ /dev/null
@@ -1,26 +0,0 @@
-name: Clean Vendor Check
-
-on:
-  push:
-    branches:
-      - stable/*
-
-jobs:
-  check-vendor:
-    name: Clean Vendor Check
-    runs-on: ubuntu-latest
-
-    steps:
-      - name: Checkout code base
-        uses: actions/checkout@v3
-
-      - name: Check If Vendor Is Clean
-        run: |
-          files=`find vendor -maxdepth 1 -type d -not -name "ipl" -not -name "fortawesome" -not -name "composer" -not -name "vendor"`
-          if [ -z "$files" ]; then
-            echo "No unknown vendor files found";
-            exit 0;
-          else
-            echo "Found unknown vendor files: $files";
-            exit 1;
-          fi
diff --git a/bin/make-release.sh b/bin/make-release.sh
index 9395242f..0cc9a6c0 100755
--- a/bin/make-release.sh
+++ b/bin/make-release.sh
@@ -53,12 +53,6 @@ rm -rf vendor
 git checkout vendor
 composer validate --no-check-all --strict || fail "Composer validate failed"
 
-UNKNOWN_VENDOR_FILES=$(find vendor -maxdepth 1 -type d -not -name "ipl" -not -name "fortawesome" -not -name "composer" -not -name "vendor")
-if [ -n "$UNKNOWN_VENDOR_FILES" ]; then
-  echo "Unknown vendor files found! DO NOT TAG!"
-  exit 1
-fi
-
 if [ -z "$NO_OPT" ]; then
   git tag -a v$VERSION -m "Version v$VERSION"
   echo "Finished, tagged v$VERSION"
diff --git a/composer.json b/composer.json
index 10b1e07a..8cfce653 100644
--- a/composer.json
+++ b/composer.json
@@ -10,15 +10,8 @@
             "php": "7.2.9"
         }
     },
-    "repositories": [
-        {
-            "type": "path",
-            "url": "./replacer"
-        }
-    ],
     "require": {
         "php": ">=7.2",
-        "repl/acer": "@dev",
         "ipl/html": "^0.8.0",
         "ipl/i18n": "^0.2.0",
         "ipl/orm": "^0.6.0",
@@ -28,6 +21,8 @@
         "ipl/validator": "^0.5.0",
         "ipl/web": "^0.9.0"
     },
+    "require-dev": {
+    },
     "autoload": {
         "psr-0": { "AssetLoader": "" }
     },
diff --git a/replacer/composer.json b/replacer/composer.json
deleted file mode 100644
index 53f9cdf7..00000000
--- a/replacer/composer.json
+++ /dev/null
@@ -1,18 +0,0 @@
-{
-  "name": "repl/acer",
-  "type": "metapackage",
-  "description": "Replaces third party packages as they are included in icinga-php-thirdparty",
-  "license": "MIT",
-  "replace": {
-    "psr/http-message": "*",
-    "guzzlehttp/psr7": "*",
-    "dragonmantank/cron-expression": "*",
-    "psr/log": "*",
-    "ramsey/uuid": "*",
-    "react/event-loop": "*",
-    "react/promise": "*",
-    "simshaun/recurr": "*",
-    "evenement/evenement": "*",
-    "wikimedia/less.php": "*"
-  }
-}