diff --git a/.github/workflows/test-translationtool.yml b/.github/workflows/test-translationtool.yml
index 15c25ad..7ac6c70 100644
--- a/.github/workflows/test-translationtool.yml
+++ b/.github/workflows/test-translationtool.yml
@@ -25,20 +25,24 @@ jobs:
       - name: Checkout
         uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
 
-      - name: Set up php8.3
+      - name: Set up php8.1
         uses: shivammathur/setup-php@c541c155eee45413f5b09a52248675b1a2575231 # v2.31.1
         with:
-          php-version: 8.3
+          php-version: 8.1
           extensions: bz2, ctype, curl, dom, fileinfo, gd, iconv, intl, json, libxml, mbstring, openssl, pcntl, posix, session, simplexml, xmlreader, xmlwriter, zip, zlib, sqlite, pdo_sqlite
           coverage: none
           ini-file: development
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 
-      - name: Install dependencies
+      - name: Install dependencies of translationtool/ directory
         working-directory: translations/translationtool/
         run: composer i
 
+      - name: Install dependencies of translationtool.php
+        working-directory: translations/translationtool/src
+        run: composer i
+
       - name: Create POT files
         working-directory: translations/translationtool/
         run: composer run test