diff --git a/Pipfile.lock b/Pipfile.lock
index fd1b9c75..bc334a0c 100644
--- a/Pipfile.lock
+++ b/Pipfile.lock
@@ -58,11 +58,12 @@
         },
         "certifi": {
             "hashes": [
-                "sha256:0569859f95fc761b18b45ef421b1290a0f65f147e92a1e5eb3e635f9a5e4e66f",
-                "sha256:dc383c07b76109f368f6106eee2b593b04a011ea4d55f652c6ca24a754d1cdd1"
+                "sha256:5a1e7645bc0ec61a09e26c36f6106dd4cf40c6db3a1fb6352b0244e7fb057c7b",
+                "sha256:c198e21b1289c2ab85ee4e67bb4b4ef3ead0892059901a8d5b622f24a1101e90"
             ],
+            "index": "pypi",
             "markers": "python_version >= '3.6'",
-            "version": "==2024.2.2"
+            "version": "==2024.7.4"
         },
         "cffi": {
             "hashes": [
@@ -856,12 +857,12 @@
         },
         "urllib3": {
             "hashes": [
-                "sha256:34b97092d7e0a3a8cf7cd10e386f401b3737364026c45e622aa02903dffe0f07",
-                "sha256:f8ecc1bba5667413457c529ab955bf8c67b45db799d159066261719e328580a0"
+                "sha256:37a0344459b199fce0e80b0d3569837ec6b6937435c5244e7fd73fa6006830f3",
+                "sha256:3e3d753a8618b86d7de333b4223005f68720bcd6a7d2bcb9fbd2229ec7c1e429"
             ],
             "index": "pypi",
             "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4, 3.5'",
-            "version": "==1.26.18"
+            "version": "==1.26.19"
         }
     },
     "develop": {
diff --git a/nise/__init__.py b/nise/__init__.py
index 6d8c101e..511a7465 100644
--- a/nise/__init__.py
+++ b/nise/__init__.py
@@ -1,3 +1,3 @@
-__version__ = "4.5.6"
+__version__ = "4.5.7"
 
 VERSION = __version__.split(".")
diff --git a/nise/report.py b/nise/report.py
index de68ffd5..c48f5ebd 100644
--- a/nise/report.py
+++ b/nise/report.py
@@ -1187,7 +1187,8 @@ def gcp_create_report(options):  # noqa: C901
 
             local_file_path, output_file_name = write_gcp_file(gen_start_date, gen_end_date, data, options)
             output_files.append(output_file_name)
-            monthly_files.append(local_file_path)
+            if local_file_path not in monthly_files:
+                monthly_files.append(local_file_path)
 
         for index, month_file in enumerate(monthly_files):
             if gcp_bucket_name:
diff --git a/tests/test_report.py b/tests/test_report.py
index 0bd419d9..d3b60407 100644
--- a/tests/test_report.py
+++ b/tests/test_report.py
@@ -1627,6 +1627,24 @@ def test_gcp_create_report_without_write_monthly(self):
 
         self.assertFalse(os.path.isfile(expected_output_file_path))
 
+    def test_gcp_create_report_without_write_monthly_overlapping_month(self):
+        """Test that there are no Exceptions when processing overlapping months dates."""
+        now = datetime.datetime(2024, 7, 1, 0, 0)
+        yesterday = datetime.datetime(2024, 6, 30, 0, 0)
+        report_prefix = "test_report"
+        options = {
+            "start_date": yesterday,
+            "end_date": now,
+            "gcp_report_prefix": report_prefix,
+            "gcp_bucket_name": "gcp_bucket_name",
+        }
+        fix_dates(options, "gcp")
+        gcp_create_report(options)
+        output_file_name = "{}-{}.csv".format(report_prefix, yesterday.strftime("%Y-%m-%d"))
+        expected_output_file_path = "{}/{}".format(os.getcwd(), output_file_name)
+
+        self.assertFalse(os.path.isfile(expected_output_file_path))
+
     def test_gcp_create_report_with_dataset_name_static_data(self):
         """Test the gcp report creation method where a dataset name is included and static data used."""
         now = datetime.datetime.now().replace(microsecond=0, second=0, minute=0, hour=0)