diff --git a/roles/custom/matrix-rageshake/defaults/main.yml b/roles/custom/matrix-rageshake/defaults/main.yml
index 2dca91b1a..8cc2f9054 100644
--- a/roles/custom/matrix-rageshake/defaults/main.yml
+++ b/roles/custom/matrix-rageshake/defaults/main.yml
@@ -16,7 +16,7 @@ matrix_rageshake_path_prefix: /
 
 # There are no stable container image tags yet.
 # See: https://github.com/matrix-org/rageshake/issues/69
-matrix_rageshake_version: "master"
+matrix_rageshake_version: 1.9.0
 
 matrix_rageshake_base_path: "{{ matrix_base_data_path }}/rageshake"
 matrix_rageshake_config_path: "{{ matrix_rageshake_base_path }}/config"