diff --git a/CHANGELOG.md b/CHANGELOG.md
index 252557ef5..0ffa6e6d5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -18,6 +18,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Fixed
 * FileSimulator returns special file info headers properly
 
+### Removed
+* One unused import.
+
 ## [1.11.0] - 2021-06-24
 
 ### Changed
diff --git a/b2sdk/raw_api.py b/b2sdk/raw_api.py
index 517f65e97..524611416 100644
--- a/b2sdk/raw_api.py
+++ b/b2sdk/raw_api.py
@@ -20,9 +20,6 @@
 from .file_lock import BucketRetentionSetting, FileRetentionSetting, LegalHold
 from .utils import b2_url_encode
 from b2sdk.http_constants import FILE_INFO_HEADER_PREFIX
-from b2sdk.http_constants import SRC_LAST_MODIFIED_MILLIS
-assert SRC_LAST_MODIFIED_MILLIS  # workaround for pyflakes: disable
-# this is here because CLI depends on it TODO: remove after fixing imports in CLI
 
 # All supported realms
 REALM_URLS = {