diff --git a/src/toolManager/gui_fixed.py b/src/toolManager/gui_fixed.py
index d4eb8a5d5..bab0cfe1a 100644
--- a/src/toolManager/gui_fixed.py
+++ b/src/toolManager/gui_fixed.py
@@ -37,7 +37,7 @@
         "desc": "PCB design and schematic capture tool"
     },
     "ngspice": {
-        "versions": ["latest", "35", "36", "37", "38", "39", "41", "42"],
+        "versions": ["latest", "35", "36", "37", "38", "39", "40", "41", "42"],
         "desc": "SPICE-based analog circuit simulator"
     },
     "llvm": {