diff --git a/idc_index/index.py b/idc_index/index.py
index 5650398..362b843 100644
--- a/idc_index/index.py
+++ b/idc_index/index.py
@@ -567,9 +567,9 @@ def get_series_size(self, seriesInstanceUID):
             ValueError: If the `seriesInstanceUID` does not exist.
         """
 
-        resp = self.index[["SeriesInstanceUID"] == seriesInstanceUID][
-            "series_size_MB"
-        ].iloc[0]
+        resp = self._filter_dataframe_by_id(
+            "SeriesInstanceUID", self.index, seriesInstanceUID
+        )["series_size_MB"].iloc[0]
         return resp
 
     def get_patients(self, collection_id, outputFormat="dict"):
@@ -2045,7 +2045,7 @@ def download_from_selection(
             if sopInstanceUID:
                 if "instance_aws_url" not in result_df:
                     result_df["instance_aws_url"] = (
-                        result_df["series_aws_url"].replace("/*", "/")
+                        result_df["series_aws_url"].str.removesuffix("*")
                         + result_df["crdc_instance_uuid"]
                         + ".dcm"
                     )
diff --git a/pyproject.toml b/pyproject.toml
index 35a5b9e..48dd5af 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -34,7 +34,7 @@ dependencies = [
   'duckdb>=1.0.0,<2.0.0',
   "idc-index-data==24.2.2",
   "packaging",
-  "pandas<=2.2.4",
+  "pandas>=2.2.2,<4",
   "platformdirs",
   "psutil",
   "pyarrow",