diff --git a/elmada/_version.py b/elmada/_version.py
index 27fdca4..81f0fde 100644
--- a/elmada/_version.py
+++ b/elmada/_version.py
@@ -1 +1 @@
-__version__ = "0.0.3"
+__version__ = "0.0.4"
diff --git a/elmada/cc_share.py b/elmada/cc_share.py
index 4f32695..b351bd4 100644
--- a/elmada/cc_share.py
+++ b/elmada/cc_share.py
@@ -24,7 +24,7 @@ def get_ccgt_shares_from_cascade():
     wiki = get_wiki_shares(cache=True).rename("manual")
     opsd = pd.Series({"DE": get_ccgt_DE()}).rename("opsd")
 
-    df = pd.concat([wiki, rich_geo, opsd], 1, sort=False)
+    df = pd.concat([wiki, rich_geo, opsd], axis=1, sort=False)
 
     def select_source(row):
         if not np.isnan(row["opsd"]):
@@ -293,7 +293,7 @@ def get_ccgt_IT():
     df2 = pd.DataFrame.from_dict(is_ccgt, "index", columns=["is_ccgt", "source"]).reset_index(
         drop=True
     )
-    df = pd.concat([df, df2], 1)
+    df = pd.concat([df, df2], axis=1)
     df["is_ccgt"] = df["is_ccgt"].astype("float")
 
     return (df[cap_col] * df["is_ccgt"]).sum() / df[cap_col].sum()
diff --git a/environment.yml b/environment.yml
index be66d5f..a7088c6 100644
--- a/environment.yml
+++ b/environment.yml
@@ -16,7 +16,6 @@ dependencies:  # NOTE: here '=' (single)
   - pytest
   - pytest-cov
   - pytest-mock
-  - python-snappy
   - python>=3.7
   - quandl
   - requests
diff --git a/setup.py b/setup.py
index f024a69..5427c7a 100644
--- a/setup.py
+++ b/setup.py
@@ -53,7 +53,6 @@ def get_extra_requires(path, add_all=True):
         "numpy",
         "pandas",
         "pyarrow",
-        "python-snappy",
         "quandl",
         "requests",
         "scipy",