diff --git a/Project.toml b/Project.toml
index 894a9ed..842359e 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,7 +1,7 @@
 name = "ODEInterfaceDiffEq"
 uuid = "09606e27-ecf5-54fc-bb29-004bd9f985bf"
 authors = ["Chris Rackauckas <accounts@chrisrackauckas.com>"]
-version = "3.17.0"
+version = "3.18.0"
 
 [deps]
 Compat = "34da2185-b29b-5c13-b0c7-acf172513d20"
@@ -20,7 +20,7 @@ DiffEqBase = "6.122"
 FunctionWrappers = "1.0"
 ODEInterface = "0.5"
 Reexport = "0.2, 1.0"
-SciMLBase = "1.73, 2"
+SciMLBase = "1.73, 2, 3.1"
 julia = "1.6"
 
 [extras]
diff --git a/src/integrator_utils.jl b/src/integrator_utils.jl
index 1bb31bc..432d5d3 100644
--- a/src/integrator_utils.jl
+++ b/src/integrator_utils.jl
@@ -99,6 +99,18 @@ end
     return integrator.u_modified = bool
 end
 
+# SciMLBase v3 renamed `u_modified!` → `derivative_discontinuity!`. On v3+,
+# also provide the overload under the new name so callers using the new
+# API dispatch correctly for `ODEInterfaceIntegrator` instead of hitting
+# the generic `error(...)` fallback in `SciMLBase.derivative_discontinuity!`.
+@static if isdefined(SciMLBase, :derivative_discontinuity!)
+    @inline function SciMLBase.derivative_discontinuity!(
+            integrator::ODEInterfaceIntegrator, bool::Bool
+        )
+        return integrator.u_modified = bool
+    end
+end
+
 function initialize_callbacks!(integrator, initialize_save = true)
     t = integrator.t
     u = integrator.u