diff --git a/.github/workflows/composer-root-version.yaml b/.github/workflows/composer-root-version.yaml
index 98c28383..6689f06b 100644
--- a/.github/workflows/composer-root-version.yaml
+++ b/.github/workflows/composer-root-version.yaml
@@ -54,7 +54,7 @@ jobs:
         strategy:
             fail-fast: false
             matrix:
-                php: [ '8.3' ]
+                php: [ '8.4' ]
 
         steps:
             -   name: Checkout
@@ -108,7 +108,7 @@ jobs:
             -   name: Setup PHP
                 uses: shivammathur/setup-php@v2
                 with:
-                    php-version: '8.3'
+                    php-version: '8.4'
                     tools: composer
                     coverage: none
 
diff --git a/.github/workflows/e2e-tests.yaml b/.github/workflows/e2e-tests.yaml
index f2a1bdd7..b2c5215a 100644
--- a/.github/workflows/e2e-tests.yaml
+++ b/.github/workflows/e2e-tests.yaml
@@ -25,6 +25,7 @@ jobs:
                 php:
                     - '8.2'
                     - '8.3'
+                    - '8.4'
         steps:
             -   name: Checkout
                 uses: actions/checkout@v4
@@ -92,6 +93,7 @@ jobs:
                 php:
                     - '8.2'
                     - '8.3'
+                    - '8.4'
                 composer:
                     - 'composer:2.2'
                     - 'composer'
@@ -159,7 +161,7 @@ jobs:
             fail-fast: false
             matrix:
                 php-version:
-                    - '8.3'
+                    - '8.4'
                 coverage:
                     - xdebug
 
diff --git a/.github/workflows/lint.yaml b/.github/workflows/lint.yaml
index e448ab55..c8c793ad 100644
--- a/.github/workflows/lint.yaml
+++ b/.github/workflows/lint.yaml
@@ -48,7 +48,7 @@ jobs:
             -   name: Setup PHP
                 uses: shivammathur/setup-php@v2
                 with:
-                    php-version: '8.3'
+                    php-version: '8.4'
                     tools: composer
                     coverage: none
 
diff --git a/.github/workflows/tests.yaml b/.github/workflows/tests.yaml
index 081d36a9..29424523 100644
--- a/.github/workflows/tests.yaml
+++ b/.github/workflows/tests.yaml
@@ -29,7 +29,7 @@ jobs:
             -   name: Setup PHP
                 uses: shivammathur/setup-php@v2
                 with:
-                    php-version: '8.3'
+                    php-version: '8.4'
                     tools: composer
                     coverage: none
 
@@ -53,7 +53,7 @@ jobs:
             -   name: Setup PHP
                 uses: shivammathur/setup-php@v2
                 with:
-                    php-version: '8.3'
+                    php-version: '8.4'
                     tools: composer
                     coverage: none
 
@@ -69,6 +69,7 @@ jobs:
                 php:
                     - '8.2'
                     - '8.3'
+                    - '8.4'
                 symfony:
                     - 'unchanged'
                     - '6.4.*'
diff --git a/fixtures/set029-easy-rdf/composer.json b/fixtures/set029-easy-rdf/composer.json
index c34424b0..e3861743 100644
--- a/fixtures/set029-easy-rdf/composer.json
+++ b/fixtures/set029-easy-rdf/composer.json
@@ -7,5 +7,10 @@
             "type": "vcs",
             "url": "https://github.com/zozlak/easyrdf.git"
         }
-    ]
+    ],
+    "scripts": {
+        "post-install-cmd": [
+            "@php patchRdfXml.php"
+        ]
+    }
 }
diff --git a/fixtures/set029-easy-rdf/composer.lock b/fixtures/set029-easy-rdf/composer.lock
index 0b2f857d..2ea2a2ae 100644
--- a/fixtures/set029-easy-rdf/composer.lock
+++ b/fixtures/set029-easy-rdf/composer.lock
@@ -91,7 +91,7 @@
     },
     "prefer-stable": false,
     "prefer-lowest": false,
-    "platform": [],
-    "platform-dev": [],
-    "plugin-api-version": "2.3.0"
+    "platform": {},
+    "platform-dev": {},
+    "plugin-api-version": "2.6.0"
 }
diff --git a/fixtures/set029-easy-rdf/patchRdfXml.php b/fixtures/set029-easy-rdf/patchRdfXml.php
new file mode 100644
index 00000000..d7b1cfed
--- /dev/null
+++ b/fixtures/set029-easy-rdf/patchRdfXml.php
@@ -0,0 +1,40 @@
+<?php
+
+$file = __DIR__.'/vendor/easyrdf/easyrdf/lib/Parser/RdfXml.php';
+
+$patchedContent = str_replace(
+    <<<'PHP'
+        /** @ignore */
+        protected function initXMLParser()
+        {
+            if (!isset($this->xmlParser)) {
+                $parser = xml_parser_create_ns('UTF-8', '');
+                xml_parser_set_option($parser, XML_OPTION_SKIP_WHITE, 0);
+                xml_parser_set_option($parser, XML_OPTION_CASE_FOLDING, 0);
+                xml_set_element_handler($parser, 'startElementHandler', 'endElementHandler');
+                xml_set_character_data_handler($parser, 'cdataHandler');
+                xml_set_start_namespace_decl_handler($parser, 'newNamespaceHandler');
+                xml_set_object($parser, $this);
+                $this->xmlParser = $parser;
+            }
+        }
+    PHP,
+    <<<'PHP'
+        /** @ignore */
+        protected function initXMLParser()
+        {
+            if (!isset($this->xmlParser)) {
+                $parser = xml_parser_create_ns('UTF-8', '');
+                xml_parser_set_option($parser, XML_OPTION_SKIP_WHITE, 0);
+                xml_parser_set_option($parser, XML_OPTION_CASE_FOLDING, 0);
+                xml_set_element_handler($parser, $this->startElementHandler(...), $this->endElementHandler(...));
+                xml_set_character_data_handler($parser, $this->cdataHandler(...));
+                xml_set_start_namespace_decl_handler($parser, $this->newNamespaceHandler(...));
+                $this->xmlParser = $parser;
+            }
+        }
+    PHP,
+    file_get_contents($file),
+);
+
+file_put_contents($file, $patchedContent);