diff --git a/gopay/__init__.py b/gopay/__init__.py
index 4caf798..db4807e 100644
--- a/gopay/__init__.py
+++ b/gopay/__init__.py
@@ -21,6 +21,9 @@ def payments(config: dict, services: dict | None = None) -> Payments:
         elif key == "gatewayUrl":
             config["gateway_url"] = config[key]
             del config[key]
+        elif key == "customUserAgent":
+            config["custom_user_agent"] = config[key]
+            del config[key]
 
     # Use Pydantic to validate the config object
     config_model = GopayConfig.model_validate(config)
diff --git a/gopay/api.py b/gopay/api.py
index 9d8a5eb..f14bdfa 100644
--- a/gopay/api.py
+++ b/gopay/api.py
@@ -5,6 +5,7 @@
 
 from gopay.enums import ContentType, Language
 from gopay.http import ApiClient, Request, Response
+from gopay.utils import DEFAULT_USER_AGENT
 
 
 @dataclass
@@ -63,10 +64,16 @@ def call(
             method=method, path=path, content_type=content_type, body=body
         )
 
+        user_agent = self.config.get("custom_user_agent")
+        if user_agent is None:
+            user_agent = DEFAULT_USER_AGENT
+        else:
+            user_agent = self.config["custom_user_agent"]
+
         # Add some default headers
         request.headers = {
             "Accept": "application/json",
-            "User-Agent": "GoPay Python SDK",
+            "User-Agent": user_agent,
             "Accept-Language": "cs-CZ"
             if self.config["language"] in [Language.CZECH, Language.SLOVAK]
             else "en-US",
diff --git a/gopay/models.py b/gopay/models.py
index b54b7f8..99620be 100644
--- a/gopay/models.py
+++ b/gopay/models.py
@@ -18,3 +18,4 @@ class GopayConfig(GopayModel):
     timeout: Optional[int] = None
     scope: enums.TokenScope = enums.TokenScope.ALL
     language: enums.Language = enums.Language.CZECH
+    custom_user_agent: Optional[str] = None
diff --git a/gopay/utils.py b/gopay/utils.py
new file mode 100644
index 0000000..fc6ac76
--- /dev/null
+++ b/gopay/utils.py
@@ -0,0 +1,11 @@
+from pathlib import Path
+
+import tomli
+
+def get_project_version():
+    pyproject_path = Path(__file__).resolve().parent.parent / 'pyproject.toml'
+    with open(pyproject_path, 'rb') as file:
+        pyproject_data = tomli.load(file)
+    return pyproject_data['tool']['poetry']['version']
+
+DEFAULT_USER_AGENT = "GoPay Python " + get_project_version()
\ No newline at end of file
diff --git a/poetry.lock b/poetry.lock
index 356811d..eca17a9 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -825,4 +825,4 @@ files = [
 [metadata]
 lock-version = "2.0"
 python-versions = "^3.9"
-content-hash = "e984eba9db1628d65127ff2e8b0a701d72e618402ae14f29c726652ae279e531"
+content-hash = "79b25fc828ef3770baacad1402d7793f1b069a58766ac7d364d8b0bf29df9f3f"
diff --git a/pyproject.toml b/pyproject.toml
index a397bf7..72a1baf 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -14,13 +14,14 @@ name = "gopay"
 packages = [{include = "gopay"}]
 readme = "README.md"
 repository = "https://github.com/gopaycommunity/gopay-python-api"
-version = "2.2.1"
+version = "2.2.2"
 
 [tool.poetry.dependencies]
 deprecated = "^1.2.14"
 pydantic = "^2.8.2"
 python = "^3.9"
 requests = "^2.31.0"
+tomli = "^2.0.1"
 
 [tool.poetry.group.dev.dependencies]
 black = ">=23.3,<25.0"