diff --git a/.github/workflows/ftp.yml b/.github/workflows/ftp.yml
index 87e66badd77ee..aa9fe3aad7913 100644
--- a/.github/workflows/ftp.yml
+++ b/.github/workflows/ftp.yml
@@ -44,7 +44,7 @@ jobs:
         with:
           php-version: ${{ matrix.php-versions }}
           tools: phpunit
-          extensions: mbstring, iconv, fileinfo, intl, sqlite, pdo_sqlite, zip, gd
+          extensions: mbstring, fileinfo, intl, sqlite, pdo_sqlite, zip, gd
 
       - name: Set up Nextcloud
         run: |
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 3158b97e0c5de..df24664ab8f64 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -15,7 +15,7 @@ jobs:
       uses: shivammathur/setup-php@master
       with:
         php-version: ${{ matrix.php-versions }}
-        extensions: ctype,curl,dom,fileinfo,gd,iconv,intl,json,mbstring,openssl,pdo_sqlite,posix,sqlite,xml,zip
+        extensions: ctype,curl,dom,fileinfo,gd,intl,json,mbstring,openssl,pdo_sqlite,posix,sqlite,xml,zip
         coverage: none
     - name: Lint
       run: composer run lint
@@ -30,7 +30,7 @@ jobs:
       uses: shivammathur/setup-php@master
       with:
         php-version: 7.4
-        extensions: ctype,curl,dom,fileinfo,gd,iconv,intl,json,mbstring,openssl,pdo_sqlite,posix,sqlite,xml,zip
+        extensions: ctype,curl,dom,fileinfo,gd,intl,json,mbstring,openssl,pdo_sqlite,posix,sqlite,xml,zip
         coverage: none
         tools: cs2pr
     - name: Install dependencies
diff --git a/.github/workflows/static-code-analysis.yml b/.github/workflows/static-code-analysis.yml
index 0a2df0d71f9ae..31ee0f89fa203 100644
--- a/.github/workflows/static-code-analysis.yml
+++ b/.github/workflows/static-code-analysis.yml
@@ -17,7 +17,7 @@ jobs:
               uses: shivammathur/setup-php@master
               with:
                 php-version: 7.4
-                extensions: ctype,curl,dom,fileinfo,gd,iconv,intl,json,mbstring,openssl,pdo_sqlite,posix,sqlite,xml,zip
+                extensions: ctype,curl,dom,fileinfo,gd,intl,json,mbstring,openssl,pdo_sqlite,posix,sqlite,xml,zip
                 coverage: none
             - name: Composer install
               run: composer i
@@ -43,7 +43,7 @@ jobs:
               uses: shivammathur/setup-php@master
               with:
                 php-version: 7.4
-                extensions: ctype,curl,dom,fileinfo,gd,iconv,intl,json,mbstring,openssl,pdo_sqlite,posix,sqlite,xml,zip
+                extensions: ctype,curl,dom,fileinfo,gd,intl,json,mbstring,openssl,pdo_sqlite,posix,sqlite,xml,zip
                 coverage: none
             - name: Composer install
               run: composer i