diff --git a/CHANGES.md b/CHANGES.md
index a9b7dda9..4cc9b4f4 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -13,6 +13,13 @@ development source code and as such may not be routinely kept up to date.
 
 # __NEXT__
 
+## Improvements
+
+* AWS console login credentials (from `aws login`) are now supported by
+  commands that use AWS, such as `nextstrain remote` with `s3://` addresses and
+  `nextstrain build --aws-batch`.  Previously, these commands failed with an
+  error about a missing `botocore[crt]` dependency.
+  ([#533](https://github.com/nextstrain/cli/issues/533), [#553](https://github.com/nextstrain/cli/pull/553))
 
 # 11.1.1 (22 October 2026)
 
diff --git a/doc/changes.md b/doc/changes.md
index 6bd35ab7..ba687aa2 100644
--- a/doc/changes.md
+++ b/doc/changes.md
@@ -16,6 +16,14 @@ development source code and as such may not be routinely kept up to date.
 (v-next)=
 ## __NEXT__
 
+(v-next-improvements)=
+### Improvements
+
+* AWS console login credentials (from `aws login`) are now supported by
+  commands that use AWS, such as `nextstrain remote` with `s3://` addresses and
+  `nextstrain build --aws-batch`.  Previously, these commands failed with an
+  error about a missing `botocore[crt]` dependency.
+  ([#533](https://github.com/nextstrain/cli/issues/533), [#553](https://github.com/nextstrain/cli/pull/553))
 
 (v11-1-1)=
 ## 11.1.1 (22 October 2026)
diff --git a/setup.py b/setup.py
index c8b24afc..2f027824 100644
--- a/setup.py
+++ b/setup.py
@@ -116,9 +116,14 @@ def find_namespaced_packages(namespace):
         # the boto3/botocore version early in resolution, often resulting in a
         # version newer than what aiobotocore supports.
         #
+        # The [crt] extra doesn't constrain boto3's version.  It adds awscrt,
+        # which botocore needs to use console login credentials (a profile with
+        # `login_session`, from `aws login`).
+        #
         # More background:
         # <https://github.com/nextstrain/cli/issues/496>
-        "boto3",
+        # <https://github.com/nextstrain/cli/issues/533>
+        "boto3[crt]",
 
         # Avoiding 2023.9.1 due to change in `auto_mkdir` parameter in
         # https://github.com/fsspec/filesystem_spec/pull/1358 that causes the