diff --git a/versionProperties/1.20.1.properties b/versionProperties/1.20.1.properties
index 69cede1c0..ae96a0291 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={ "iris": "<=1.6.20" }
+    fabric_incompatibility_list={ "iris": "<=1.7.4" }
     fabric_recommend_list={}
     
     # Fabric mod run
diff --git a/versionProperties/1.20.2.properties b/versionProperties/1.20.2.properties
index 62f394c8a..5806ae556 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={ "iris": "<=1.6.20" }
+    fabric_incompatibility_list={ "iris": "<=1.7.4" }
     fabric_recommend_list={}
     
     # Fabric mod run
diff --git a/versionProperties/1.20.4.properties b/versionProperties/1.20.4.properties
index 380a3fd7c..429581c43 100644
--- a/versionProperties/1.20.4.properties
+++ b/versionProperties/1.20.4.properties
@@ -21,7 +21,7 @@ fabric_api_version=0.91.2+1.20.4
     immersive_portals_version=
     canvas_version=
     
-    fabric_incompatibility_list={ "iris": "<=1.6.20" }
+    fabric_incompatibility_list={ "iris": "<=1.7.4" }
     fabric_recommend_list={}
     
     # Fabric mod run
diff --git a/versionProperties/1.20.6.properties b/versionProperties/1.20.6.properties
index 273c66923..0772be2dc 100644
--- a/versionProperties/1.20.6.properties
+++ b/versionProperties/1.20.6.properties
@@ -21,7 +21,7 @@ fabric_api_version=0.97.8+1.20.6
     immersive_portals_version=
     canvas_version=
     
-    fabric_incompatibility_list={ "iris": "<=1.6.20" }
+    fabric_incompatibility_list={ "iris": "<=1.7.4" }
     fabric_recommend_list={}
     
     # Fabric mod run
diff --git a/versionProperties/1.21.properties b/versionProperties/1.21.properties
index 4e9ded570..647a2b799 100644
--- a/versionProperties/1.21.properties
+++ b/versionProperties/1.21.properties
@@ -21,7 +21,7 @@ fabric_api_version=0.100.1+1.21
     immersive_portals_version=
     canvas_version=
     
-    fabric_incompatibility_list={ "iris": "<=1.6.20" }
+    fabric_incompatibility_list={ "iris": "<=1.7.4" }
     fabric_recommend_list={}
     
     # Fabric mod run