diff --git a/grpc4bmi/run_server.py b/grpc4bmi/run_server.py
index eb04fcd..626f265 100755
--- a/grpc4bmi/run_server.py
+++ b/grpc4bmi/run_server.py
@@ -148,7 +148,7 @@ def build_parser():
                         help="Version of BMI interface implemented by model")
     parser.add_argument("--debug", action="store_true",
                         help="Run server in debug mode. "
-                             "Logs errors with stacktraces and returns stacktrace in error response")
+                             "Logs running port and errors with stacktraces and returns stacktrace in error response")
     return parser
 
 
diff --git a/pyproject.toml b/pyproject.toml
index 019ff81..5cc16c9 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -54,7 +54,7 @@ docs = [
     "sphinxcontrib-napoleon",
     "sphinxcontrib-jquery",
     "sphinx-argparse",
-    "sphinx_rtd_theme",
+    "sphinx_rtd_theme>=1.0.0",
     "numpydoc",
     "sphinx-copybutton",
 ]