diff --git a/flaml/version.py b/flaml/version.py
index 92192eed4..68cdeee4b 100644
--- a/flaml/version.py
+++ b/flaml/version.py
@@ -1 +1 @@
-__version__ = "1.0.4"
+__version__ = "1.0.5"
diff --git a/setup.py b/setup.py
index 0e4b932c8..0a1ee4371 100644
--- a/setup.py
+++ b/setup.py
@@ -92,11 +92,17 @@ setuptools.setup(
             "rouge_score",
         ],
         "ts_forecast": [
+            "holidays<0.14",  # to prevent installation error for prophet
+            "prophet>=1.0.1",
+            "statsmodels>=0.12.2",
+            "hcrystalball==0.1.10",
+        ],
+        "forecast": [
+            "holidays<0.14",  # to prevent installation error for prophet
             "prophet>=1.0.1",
             "statsmodels>=0.12.2",
             "hcrystalball==0.1.10",
         ],
-        "forecast": ["prophet>=1.0.1", "statsmodels>=0.12.2", "hcrystalball==0.1.10"],
         "benchmark": ["catboost>=0.26", "psutil==5.8.0", "xgboost==1.3.3"],
     },
     classifiers=[