diff --git a/SemiSaturatableRW/SemiSaturatableRW-2-2.1.0.ckan b/SemiSaturatableRW/SemiSaturatableRW-2-2.1.0.ckan
index defe5d268a..89fb52e072 100644
--- a/SemiSaturatableRW/SemiSaturatableRW-2-2.1.0.ckan
+++ b/SemiSaturatableRW/SemiSaturatableRW-2-2.1.0.ckan
@@ -8,7 +8,8 @@
         "DarthPointer"
     ],
     "version": "2:2.1.0",
-    "ksp_version": "1.10.1",
+    "ksp_version_min": "1.9.1",
+    "ksp_version_max": "1.11.9",
     "license": "GPL-3.0",
     "release_status": "stable",
     "resources": {