diff --git a/Project.toml b/Project.toml
index 0c699a94..2f84d9af 100644
--- a/Project.toml
+++ b/Project.toml
@@ -79,7 +79,7 @@ ForwardDiff = "0.10"
 FuseUtils = "1.1"
 FusionMaterials = "1"
 GeoInterface = "1"
-IMAS = "1.7"
+IMAS = "1.9"
 Interpolations = "0.15"
 JSON = "0.21"
 JpegTurbo = "0.1"