diff --git a/kOS/kOS-1.1.3.1.ckan b/kOS/kOS-1.1.3.1.ckan
index 7b7218c759..adc94780b9 100644
--- a/kOS/kOS-1.1.3.1.ckan
+++ b/kOS/kOS-1.1.3.1.ckan
@@ -12,7 +12,7 @@
         "manual": "http://ksp-kos.github.io/KOS_DOC/"
     },
     "version": "1.1.3.1",
-    "ksp_version_min": "1.2.0",
+    "ksp_version_min": "1.0.0",
     "ksp_version_max": "1.2.99",
     "recommends": [
         {