diff --git a/versionProperties/1.16.5.properties b/versionProperties/1.16.5.properties
index dae7f1dc0..9740ae07d 100644
--- a/versionProperties/1.16.5.properties
+++ b/versionProperties/1.16.5.properties
@@ -21,7 +21,7 @@ fabric_api_version=0.42.0+1.16
     immersive_portals_version=
     canvas_version=
 
-    fabric_incompatibility_list={ }
+    fabric_incompatibility_list={ "iris": "*" }
     fabric_recommend_list={ "indium": "*" }
 
     # Fabric mod run
diff --git a/versionProperties/1.17.1.properties b/versionProperties/1.17.1.properties
index 4b5b8dfc9..bd823e4ae 100644
--- a/versionProperties/1.17.1.properties
+++ b/versionProperties/1.17.1.properties
@@ -21,7 +21,7 @@ fabric_api_version=0.46.1+1.17
     immersive_portals_version=
     canvas_version=
 
-    fabric_incompatibility_list={ }
+    fabric_incompatibility_list={ "iris": "*" }
     fabric_recommend_list={ "indium": "*" }
 
     # Fabric mod run
diff --git a/versionProperties/1.18.2.properties b/versionProperties/1.18.2.properties
index e168e4f1b..a14c7cacb 100644
--- a/versionProperties/1.18.2.properties
+++ b/versionProperties/1.18.2.properties
@@ -22,7 +22,7 @@ fabric_api_version=0.76.0+1.18.2
     immersive_portals_version=v1.4.11-1.18
     canvas_version=mc118:1.0.2616
 
-    fabric_incompatibility_list={ }
+    fabric_incompatibility_list={ "iris": "*" }
     fabric_recommend_list={ "indium": "*" }
 
     # Fabric mod run
diff --git a/versionProperties/1.19.2.properties b/versionProperties/1.19.2.properties
index 34e38b150..0e0576876 100644
--- a/versionProperties/1.19.2.properties
+++ b/versionProperties/1.19.2.properties
@@ -21,7 +21,7 @@ fabric_api_version=0.76.1+1.19.2
     immersive_portals_version=
     canvas_version=mc119-1.0.2480
 
-    fabric_incompatibility_list={ }
+    fabric_incompatibility_list={ "iris": "*" }
     fabric_recommend_list={ "indium": "*" }
 
     # Fabric mod run
diff --git a/versionProperties/1.19.4.properties b/versionProperties/1.19.4.properties
index c3a91dfda..c5c107ea3 100644
--- a/versionProperties/1.19.4.properties
+++ b/versionProperties/1.19.4.properties
@@ -20,7 +20,7 @@ fabric_api_version=0.87.1+1.19.4
     immersive_portals_version=
     canvas_version=
     
-    fabric_incompatibility_list={ }
+    fabric_incompatibility_list={ "iris": "*" }
     fabric_recommend_list={ "indium": "*" }
 
     # Fabric mod run
diff --git a/versionProperties/1.20.1.properties b/versionProperties/1.20.1.properties
index ba4d8188b..27d2166ad 100644
--- a/versionProperties/1.20.1.properties
+++ b/versionProperties/1.20.1.properties
@@ -20,7 +20,7 @@ fabric_api_version=0.90.4+1.20.1
     immersive_portals_version=
     canvas_version=
     
-    fabric_incompatibility_list={ }
+    fabric_incompatibility_list={ "iris": "<=1.6.20" }
     fabric_recommend_list={ "indium": "*" }
     
     # Fabric mod run
diff --git a/versionProperties/1.20.2.properties b/versionProperties/1.20.2.properties
index 1f15abab5..6678cd53e 100644
--- a/versionProperties/1.20.2.properties
+++ b/versionProperties/1.20.2.properties
@@ -20,7 +20,7 @@ fabric_api_version=0.90.4+1.20.2
     immersive_portals_version=
     canvas_version=
     
-    fabric_incompatibility_list={ }
+    fabric_incompatibility_list={ "iris": "<=1.6.20" }
     fabric_recommend_list={ "indium": "*" }
     
     # Fabric mod run
diff --git a/versionProperties/1.20.4.properties b/versionProperties/1.20.4.properties
index 7ee65a149..e8e2d6125 100644
--- a/versionProperties/1.20.4.properties
+++ b/versionProperties/1.20.4.properties
@@ -20,7 +20,7 @@ fabric_api_version=0.91.2+1.20.4
     immersive_portals_version=
     canvas_version=
     
-    fabric_incompatibility_list={ "iris": "<1.7.0" }
+    fabric_incompatibility_list={ "iris": "<=1.6.20" }
     fabric_recommend_list={ "indium": "*" }
     
     # Fabric mod run