diff --git a/tests/unit_tests/test_tethys_cli/test_docker_commands.py b/tests/unit_tests/test_tethys_cli/test_docker_commands.py
index 45c36eb4b..b5fcb22f4 100644
--- a/tests/unit_tests/test_tethys_cli/test_docker_commands.py
+++ b/tests/unit_tests/test_tethys_cli/test_docker_commands.py
@@ -560,7 +560,7 @@ def test_cm_default_container_options_thredds(self, mock_port_bindings_prop):
         mock_port_bindings_prop.return_value = mock_port_bindings
         expected_options = dict(
             name="tethys_thredds",
-            image="unidata/thredds-docker:4.6.20-SNAPSHOT",
+            image="unidata/thredds-docker:4.6.20",
             environment=dict(
                 TDM_PW="CHANGEME!",
                 TDS_HOST="http://localhost",
diff --git a/tethys_cli/docker_commands.py b/tethys_cli/docker_commands.py
index a5682af7f..f48c2d427 100644
--- a/tethys_cli/docker_commands.py
+++ b/tethys_cli/docker_commands.py
@@ -541,7 +541,7 @@ class ThreddsContainerMetadata(ContainerMetadata):
     name = "tethys_thredds"
     display_name = "THREDDS"
     image_name = "unidata/thredds-docker"
-    tag = "4.6.20-SNAPSHOT"
+    tag = "4.6.20"
     host_port = 8383
     container_port = 8080