diff --git a/pyproject.toml b/pyproject.toml
index bdd12aa..1468507 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -54,7 +54,7 @@ statemachine = [
     "python-statemachine>=3.1.2",
 ]
 statemachine_diagrams = [
-    "python-statemachine[diagrams]>=3.0.0",
+    "python-statemachine[diagrams]>=3.1.2",
 ]
 
 [dependency-groups]
diff --git a/uv.lock b/uv.lock
index ff9c031..2d89c07 100644
--- a/uv.lock
+++ b/uv.lock
@@ -64,7 +64,7 @@ requires-dist = [
     { name = "pyglet", specifier = ">=2.1.dev5" },
     { name = "pysdl2", specifier = ">=0.9.16" },
     { name = "python-statemachine", marker = "extra == 'statemachine'", specifier = ">=3.1.2" },
-    { name = "python-statemachine", extras = ["diagrams"], marker = "extra == 'statemachine-diagrams'", specifier = ">=3.0.0" },
+    { name = "python-statemachine", extras = ["diagrams"], marker = "extra == 'statemachine-diagrams'", specifier = ">=3.1.2" },
     { name = "pyyaml", specifier = ">=6.0" },
     { name = "screeninfo", specifier = ">=0.8.1" },
     { name = "watchdog", specifier = ">=5.0.0" },