diff --git a/install.yaml b/install.yaml
index a430730..a60a2d8 100644
--- a/install.yaml
+++ b/install.yaml
@@ -17,5 +17,4 @@ project_files:
 post_install_actions:
   - |
     #ddev-description: Change the redis dump filename
-    #
-    sed -i "s/REPLACE_ME/${DDEV_SITENAME}/g" redis/snapshots.conf
+    docker run -e DDEV_SITENAME -v "$(pwd)"/redis:/redis -i --rm ddev/ddev-utilities bash -c "sed -i 's/REPLACE_ME/$DDEV_SITENAME/g' /redis/snapshots.conf"
diff --git a/tests/test.bats b/tests/test.bats
index 7bdfad3..7b9e5a3 100644
--- a/tests/test.bats
+++ b/tests/test.bats
@@ -84,7 +84,7 @@ teardown() {
 @test "install from release" {
   set -eu -o pipefail
   cd "$TEST_DIR" || ( printf "unable to cd to "$TEST_DIR"\n" && exit 1 )
-  echo "# ddev get oblakstudio/ddev-redis with project "$PROJECT" in "$TEST_DIR"" >&3
-  health_checks "oblakstudio/ddev-redis-7"
+  echo "# ddev get ddev/ddev-redis with project "$PROJECT" in "$TEST_DIR"" >&3
+  health_checks "ddev/ddev-redis-7"
 }