diff --git a/airbyte-ci/connectors/pipelines/README.md b/airbyte-ci/connectors/pipelines/README.md
index b127b33c836c77..334be5f9dfcd4d 100644
--- a/airbyte-ci/connectors/pipelines/README.md
+++ b/airbyte-ci/connectors/pipelines/README.md
@@ -652,6 +652,7 @@ E.G.: running Poe tasks on the modified internal packages of the current branch:
 
 | Version | PR                                                         | Description                                                                                                                |
 | ------- | ---------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------- |
+| 4.6.2   | [#36220](https://github.com/airbytehq/airbyte/pull/36220)  | Allow using `migrate-to-base-image` without PULL_REQUEST_NUMBER                                                            |
 | 4.6.1   | [#36319](https://github.com/airbytehq/airbyte/pull/36319)  | Fix `ValueError` related to PR number in migrate-to-poetry                                                                 |
 | 4.6.0   | [#35583](https://github.com/airbytehq/airbyte/pull/35583)  | Implement the `airbyte-ci connectors migrate-to-poetry` command.                                                           |
 | 4.5.4   | [#36206](https://github.com/airbytehq/airbyte/pull/36206)  | Revert poetry cache removal during nightly builds                                                                          |
diff --git a/airbyte-ci/connectors/pipelines/pipelines/airbyte_ci/connectors/migrate_to_base_image/commands.py b/airbyte-ci/connectors/pipelines/pipelines/airbyte_ci/connectors/migrate_to_base_image/commands.py
index 7b6196e6eee514..50f98a85a4ff88 100644
--- a/airbyte-ci/connectors/pipelines/pipelines/airbyte_ci/connectors/migrate_to_base_image/commands.py
+++ b/airbyte-ci/connectors/pipelines/pipelines/airbyte_ci/connectors/migrate_to_base_image/commands.py
@@ -2,6 +2,7 @@
 # Copyright (c) 2023 Airbyte, Inc., all rights reserved.
 #
 
+
 import asyncclick as click
 from pipelines.airbyte_ci.connectors.context import ConnectorContext
 from pipelines.airbyte_ci.connectors.migrate_to_base_image.pipeline import run_connector_migration_to_base_image_pipeline
@@ -14,13 +15,16 @@
     cls=DaggerPipelineCommand,
     short_help="Make the selected connectors use our base image: remove dockerfile, update metadata.yaml and update documentation.",
 )
-@click.argument("pull-request-number", type=str)
+@click.option("pull-request-number", type=str, required=False, default=None)
 @click.pass_context
 async def migrate_to_base_image(
     ctx: click.Context,
-    pull_request_number: str,
+    pull_request_number: str | None,
 ) -> bool:
-    """Bump a connector version: update metadata.yaml, changelog and delete legacy files."""
+    """
+    Bump a connector version: update metadata.yaml, changelog and delete legacy files.
+    If the `PULL_REQUEST_NUMBER` is not provided, no changelog entry will be added.
+    """
 
     fail_if_missing_docker_hub_creds(ctx)
 
diff --git a/airbyte-ci/connectors/pipelines/pipelines/airbyte_ci/connectors/migrate_to_base_image/pipeline.py b/airbyte-ci/connectors/pipelines/pipelines/airbyte_ci/connectors/migrate_to_base_image/pipeline.py
index cb1f6d357d3abe..b544943deac3bc 100644
--- a/airbyte-ci/connectors/pipelines/pipelines/airbyte_ci/connectors/migrate_to_base_image/pipeline.py
+++ b/airbyte-ci/connectors/pipelines/pipelines/airbyte_ci/connectors/migrate_to_base_image/pipeline.py
@@ -284,12 +284,11 @@ async def run_connector_base_image_upgrade_pipeline(context: ConnectorContext, s
 
 
 async def run_connector_migration_to_base_image_pipeline(
-    context: ConnectorContext, semaphore: "Semaphore", pull_request_number: str
+    context: ConnectorContext, semaphore: "Semaphore", pull_request_number: str | None
 ) -> Report:
     async with semaphore:
         steps_results = []
         async with context:
-            # DELETE DOCKERFILE
             delete_docker_file = DeleteConnectorFile(
                 context,
                 "Dockerfile",
@@ -330,16 +329,17 @@ async def run_connector_migration_to_base_image_pipeline(
             bump_version_in_metadata_result = await bump_version_in_metadata.run()
             steps_results.append(bump_version_in_metadata_result)
 
-            # ADD CHANGELOG ENTRY
-            add_changelog_entry = AddChangelogEntry(
-                context,
-                bump_version_in_metadata_result.output,
-                new_version,
-                "Base image migration: remove Dockerfile and use the python-connector-base image",
-                pull_request_number,
-            )
-            add_changelog_entry_result = await add_changelog_entry.run()
-            steps_results.append(add_changelog_entry_result)
+            # ADD CHANGELOG ENTRY only if the PR number is provided.
+            if pull_request_number is not None:
+                add_changelog_entry = AddChangelogEntry(
+                    context,
+                    bump_version_in_metadata_result.output,
+                    new_version,
+                    "Base image migration: remove Dockerfile and use the python-connector-base image",
+                    pull_request_number,
+                )
+                add_changelog_entry_result = await add_changelog_entry.run()
+                steps_results.append(add_changelog_entry_result)
 
             # UPDATE DOC
             add_build_instructions_to_doc = AddBuildInstructionsToReadme(
diff --git a/airbyte-ci/connectors/pipelines/pyproject.toml b/airbyte-ci/connectors/pipelines/pyproject.toml
index e0febef440521f..c71f38efd5189c 100644
--- a/airbyte-ci/connectors/pipelines/pyproject.toml
+++ b/airbyte-ci/connectors/pipelines/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "poetry.core.masonry.api"
 
 [tool.poetry]
 name = "pipelines"
-version = "4.6.1"
+version = "4.6.2"
 description = "Packaged maintained by the connector operations team to perform CI for connectors' pipelines"
 authors = ["Airbyte <contact@airbyte.io>"]