diff --git a/Project.toml b/Project.toml
index 9f17f48c0a..5abc6ed179 100644
--- a/Project.toml
+++ b/Project.toml
@@ -35,12 +35,12 @@ WriteVTK = "64499a7a-5c06-52f2-abe2-ccb03c286192"
 
 [weakdeps]
 CUDA = "052768ef-5323-5732-b1bb-66c8b64840ba"
-OrdinaryDiffEq = "1dea7af3-3e70-54e6-95c3-0bf5283fa5ed"
 OrdinaryDiffEqCore = "bbf590c4-e513-4bbe-9b18-05decba2e5d8"
+OrdinaryDiffEqSymplecticRK = "fa646aed-7ef9-47eb-84c4-9443fc8cbfa8"
 
 [extensions]
+TrixiParticlesOrdinaryDiffEqSymplecticRKExt = ["OrdinaryDiffEqSymplecticRK", "OrdinaryDiffEqCore"]
 TrixiParticlesCUDAExt = "CUDA"
-TrixiParticlesOrdinaryDiffEqExt = ["OrdinaryDiffEq", "OrdinaryDiffEqCore"]
 
 [compat]
 Accessors = "0.1.43"
@@ -56,7 +56,7 @@ ForwardDiff = "1"
 GPUArraysCore = "0.2"
 JSON = "1"
 KernelAbstractions = "0.9"
-OrdinaryDiffEq = "6.91"
+OrdinaryDiffEqSymplecticRK = "1.10"
 OrdinaryDiffEqCore = "2, 3"
 PointNeighbors = "0.6.6"
 Polyester = "0.7.10"
diff --git a/ext/TrixiParticlesOrdinaryDiffEqExt.jl b/ext/TrixiParticlesOrdinaryDiffEqSymplecticRKExt.jl
similarity index 97%
rename from ext/TrixiParticlesOrdinaryDiffEqExt.jl
rename to ext/TrixiParticlesOrdinaryDiffEqSymplecticRKExt.jl
index b5300b70e5..8956af85ac 100644
--- a/ext/TrixiParticlesOrdinaryDiffEqExt.jl
+++ b/ext/TrixiParticlesOrdinaryDiffEqSymplecticRKExt.jl
@@ -1,4 +1,4 @@
-module TrixiParticlesOrdinaryDiffEqExt
+module TrixiParticlesOrdinaryDiffEqSymplecticRKExt
 
 # This package extension defines the `SymplecticPositionVerlet` scheme from DualSPHysics.
 # The scheme is similar to the `LeapfrogDriftKickDrift` scheme, but with a different
@@ -12,8 +12,8 @@ using TrixiParticles: TrixiParticles, @threaded, each_integrated_particle,
                       WeaklyCompressibleSPHSystem, ContinuityDensity,
                       PointNeighbors
 
-using OrdinaryDiffEq.OrdinaryDiffEqSymplecticRK: alloc_symp_state, load_symp_state,
-                                                 store_symp_state!
+using OrdinaryDiffEqSymplecticRK: alloc_symp_state, load_symp_state,
+                                  store_symp_state!
 
 using OrdinaryDiffEqCore: OrdinaryDiffEqCore, @.., @muladd, @cache,
                           OrdinaryDiffEqPartitionedAlgorithm,