diff --git a/Changelog.md b/Changelog.md
index 74ce1b9..9f26638 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -1,3 +1,7 @@
+# 0.3.9
+
+* Added S3_ENABLE_LISTINGS_CACHE variable (See README.md)
+
 # 0.3.8
 
 * Fixed bug #57 affecting deeply nested subdirectory listing
diff --git a/cellxgene_gateway/__init__.py b/cellxgene_gateway/__init__.py
index 35ea6ed..0d37537 100644
--- a/cellxgene_gateway/__init__.py
+++ b/cellxgene_gateway/__init__.py
@@ -7,4 +7,4 @@
 # OR CONDITIONS OF ANY KIND, either express or implied. See the License for
 # the specific language governing permissions and limitations under the License.
 
-__version__ = "0.3.8"
+__version__ = "0.3.9"