diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 4a58c15..7702146 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -16,7 +16,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.11", "3.12", "3.13"]
+        python-version: ["3.11", "3.12", "3.13", "3.14"]
 
     steps:
       - uses: actions/checkout@v4
diff --git a/src/vudials_client/vudialsclient.py b/src/vudials_client/vudialsclient.py
index 35891ab..afa38f9 100644
--- a/src/vudials_client/vudialsclient.py
+++ b/src/vudials_client/vudialsclient.py
@@ -13,7 +13,7 @@ def get_uri(self, server_url: str, api_key: str, api_call: str, keyword_params:
         # This means it will appear in server access logs, proxy logs, and
         # HTTP client history. If the server adds header-based authentication
         # in the future, prefer an Authorization or X-API-Key header instead.
-        return f'{server_url}/api/v0/{api_call}?key={api_key}{keyword_params}'
+        return f'{server_url}/api/v0/{api_call}?key={quote(api_key)}{keyword_params}'
 
     def send_http_request(self, path_uri: str, files: dict, timeout: int = 10) -> requests.Response:
         if files is not None:
@@ -27,7 +27,7 @@ def send_http_request(self, path_uri: str, files: dict, timeout: int = 10) -> re
 class VUAdminUtil:
     def get_uri(self, server_url: str, api_key: str, api_call: str, keyword_params: str) -> str:
         # Security note: See VUUtil.get_uri — same key-in-URL caveat applies.
-        return f'{server_url}/api/v0/{api_call}?admin_key={api_key}{keyword_params}'
+        return f'{server_url}/api/v0/{api_call}?admin_key={quote(api_key)}{keyword_params}'
 
     def send_http_request(self, path_uri: str, method: str, timeout: int = 10) -> requests.Response:
         if method == "post":
diff --git a/tests/test_vudialsclient.py b/tests/test_vudialsclient.py
index 817a170..2887c4d 100644
--- a/tests/test_vudialsclient.py
+++ b/tests/test_vudialsclient.py
@@ -49,6 +49,12 @@ def test_multiple_keyword_params(self):
         assert "green=128" in uri
         assert "blue=0" in uri
 
+    def test_key_with_special_chars_url_encoded(self):
+        # A key containing & and = must not break the query string structure.
+        uri = self.util.get_uri("http://localhost:5340", "k&admin_key=evil", "dial/list", "")
+        assert "k%26admin_key%3Devil" in uri
+        assert "admin_key=evil" not in uri
+
 
 class TestVUUtilSendHttpRequest:
     def setup_method(self):
@@ -138,6 +144,12 @@ def test_api_path_format(self):
         uri = self.util.get_uri("http://192.168.0.1:9000", "k", "admin/keys/list", "")
         assert uri.startswith("http://192.168.0.1:9000/api/v0/")
 
+    def test_admin_key_with_special_chars_url_encoded(self):
+        # A key containing & and = must not inject extra query parameters.
+        uri = self.util.get_uri("http://localhost:5340", "a&key=evil", "admin/keys/list", "")
+        assert "a%26key%3Devil" in uri
+        assert "key=evil" not in uri
+
 
 class TestVUAdminUtilSendHttpRequest:
     def setup_method(self):