diff --git a/amsterdam.json b/amsterdam.json
index e4c6df5..bc551c0 100644
--- a/amsterdam.json
+++ b/amsterdam.json
@@ -3,6 +3,7 @@
     "target": "kasli",
     "variant": "amsterdam",
     "hw_rev": "v2.0",
+    "min_artiq_version": "6.0",
     "ext_ref_frequency": 10e6,
     "base": "standalone",
     "core_addr": "10.34.16.100",
diff --git a/bonn2master.json b/bonn2master.json
index 96c268b..a5727af 100644
--- a/bonn2master.json
+++ b/bonn2master.json
@@ -3,6 +3,7 @@
     "target": "kasli",
     "variant": "bonn2master",
     "hw_rev": "v2.0",
+    "min_artiq_version": "6.0",
     "ext_ref_frequency": 10e6,
     "base": "master",
     "core_addr": "10.34.16.100",