PHOENIX-6811 Re-add phoenixdb requirements (#109)

diff --git a/python-phoenixdb/NEWS.rst b/python-phoenixdb/NEWS.rst
index a9d195e..4639581 100644
--- a/python-phoenixdb/NEWS.rst
+++ b/python-phoenixdb/NEWS.rst
@@ -15,6 +15,7 @@
 - Fixed get_view_names() in SqlAlchemy driver (PHOENIX-6727)
 - Added supports_statement_cache attribute for SqlAlchemy dialect to avoid warnings (PHOENIX-6735)
 - Re-generated the protobuf Python files with protoc 3.19 from the Avatica 1.21 descriptors (PHOENIX-6731)
+- Re-added phoenixdb requirements (PHOENIX-6811)
 - Dropped support for Python 3.4 (PHOENIX-6731)
 
 Version 1.1.0
diff --git a/python-phoenixdb/requirements.txt b/python-phoenixdb/requirements.txt
index 8413cd7..3000b74 100644
--- a/python-phoenixdb/requirements.txt
+++ b/python-phoenixdb/requirements.txt
@@ -16,4 +16,6 @@
 # specific language governing permissions and limitations
 # under the License.
 #
-# requirements are defined in setup.py
\ No newline at end of file
+protobuf>=3.0.0
+requests
+requests-gssapi
\ No newline at end of file