diff --git a/CHANGELOG.md b/CHANGELOG.md
index b3fa10d2..b56cac13 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -26,11 +26,12 @@ and uses [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 -->
 ------
-## [v7.0.10](https://github.com/asfadmin/Discovery-asf_search/compare/v7.0.9...v7.0.10)
+## [v7.1.0](https://github.com/asfadmin/Discovery-asf_search/compare/v7.0.9...v7.1.0)
 ### Added
 - Improved logging in `ASFSession` authentication methods
 
 ### Changed
+- Uses `ciso8601` module for parsing dates from CMR response, significant performance improvement post-query
 - `ASFSession` now allows for authorized user access to hidden/restricted CMR datasets via `auth_with_creds()` or `auth_with_cookiejar()` authentication methods (previously only supported via `auth_with_token()` method)
 - `ASFSession.auth_with_token()` now authenticates directly against EDL endpoint
 
diff --git a/asf_search/CMR/translate.py b/asf_search/CMR/translate.py
index 1c57de58..d564d9c7 100644
--- a/asf_search/CMR/translate.py
+++ b/asf_search/CMR/translate.py
@@ -9,7 +9,7 @@
 from shapely.geometry.base import BaseGeometry
 from .field_map import field_map
 from .datasets import collections_per_platform
-import dateparser
+import ciso8601
 import logging
 
 
@@ -157,8 +157,11 @@ def try_parse_date(value: str) -> Optional[str]:
     if value is None:
         return None
 
-    date = dateparser.parse(value)
-
+    try:
+        date = ciso8601.parse_datetime(value)
+    except ValueError:
+        return None
+    
     if date is None:
         return value
 
diff --git a/setup.py b/setup.py
index d88008cf..69e29546 100644
--- a/setup.py
+++ b/setup.py
@@ -9,7 +9,8 @@
     "importlib_metadata",
     "numpy",
     "dateparser",
-    "tenacity == 8.2.2"
+    "tenacity == 8.2.2",
+    "ciso8601"
 ]
 
 test_requirements = [
diff --git a/tests/ASFSearchResults/test_ASFSearchResults.py b/tests/ASFSearchResults/test_ASFSearchResults.py
index 68e55ec2..7f80a124 100644
--- a/tests/ASFSearchResults/test_ASFSearchResults.py
+++ b/tests/ASFSearchResults/test_ASFSearchResults.py
@@ -1,6 +1,5 @@
 from typing import Dict, List
 
-import dateparser
 import asf_search as asf
 from asf_search import ASFSearchResults
 import defusedxml.ElementTree as DefusedETree