diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2fbeb6d..c25eb74 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,9 @@
+## v1.0.1
+### 2024-04-05
+
+This version of HyBIG updates the repository to use `black` code formatting
+throughout. There should be no functional change to the service.
+
 ## v1.0.0
 ### 2024-01-22
 This version of the Harmony Browse Image Generator (HyBIG) contains all
diff --git a/docker/service_version.txt b/docker/service_version.txt
index 3eefcb9..7dea76e 100644
--- a/docker/service_version.txt
+++ b/docker/service_version.txt
@@ -1 +1 @@
-1.0.0
+1.0.1