diff --git a/infra/env.yaml b/infra/env.yaml
index 875c03013613270641bdbf186801a3205709d3fc..89d8c7cb312296dc56750d0094a955662cbc1842 100644
--- a/infra/env.yaml
+++ b/infra/env.yaml
@@ -52,7 +52,7 @@ simulators:
       config: APSCTTR
 
 sdptr:
-  version: latest
+  version: v1-2-0
   instances:
     lba:
       first_gn: 0