diff --git a/Project.toml b/Project.toml
index 3d0abc9b1..9fa5bd6ca 100644
--- a/Project.toml
+++ b/Project.toml
@@ -25,11 +25,10 @@ CUDA = "052768ef-5323-5732-b1bb-66c8b64840ba"
 ChainRulesCore = "d360d2e6-b24c-11e9-a2a3-2a2ae2dbcce4"
 FiniteDifferences = "26cc04aa-876d-5657-8c51-4c34ba976000"
 Mooncake = "da2b9cff-9c12-43a0-ae48-6db2b0edb7d6"
-cuTENSOR = "011b41b2-24ef-40a8-b3eb-fa098493e9e1"
 
 [extensions]
 TensorKitAMDGPUExt = "AMDGPU"
-TensorKitCUDAExt = ["CUDA", "cuTENSOR"]
+TensorKitCUDAExt = "CUDA"
 TensorKitChainRulesCoreExt = "ChainRulesCore"
 TensorKitFiniteDifferencesExt = "FiniteDifferences"
 TensorKitMooncakeExt = "Mooncake"
@@ -57,5 +56,4 @@ TensorKitSectors = "0.3.7"
 TensorOperations = "5.5"
 TupleTools = "1.5"
 VectorInterface = "0.4.8, 0.5, 0.6"
-cuTENSOR = "6"
 julia = "1.10"
diff --git a/ext/TensorKitCUDAExt/TensorKitCUDAExt.jl b/ext/TensorKitCUDAExt/TensorKitCUDAExt.jl
index aa7320f32..dc48042a4 100644
--- a/ext/TensorKitCUDAExt/TensorKitCUDAExt.jl
+++ b/ext/TensorKitCUDAExt/TensorKitCUDAExt.jl
@@ -2,7 +2,6 @@ module TensorKitCUDAExt
 
 using CUDA, CUDA.cuBLAS, CUDA.cuSOLVER, CUDA.cuRAND, LinearAlgebra
 using CUDA: @allowscalar
-using cuTENSOR: cuTENSOR
 import CUDA.cuRAND: rand as curand, rand! as curand!, randn as curandn, randn! as curandn!
 using Strided: StridedViews
 using CUDA.CUDACore.KernelAbstractions: @kernel, @index, get_backend
diff --git a/test/Project.toml b/test/Project.toml
index 18af8af80..f8602fad0 100644
--- a/test/Project.toml
+++ b/test/Project.toml
@@ -35,6 +35,7 @@ Aqua = "0.6, 0.7, 0.8"
 AllocCheck = "0.2"
 ChainRulesTestUtils = "1"
 Combinatorics = "1"
+cuTENSOR = "6"
 GPUArrays = "11.3.1"
 JET = "0.9, 0.10, 0.11"
 ParallelTestRunner = "2"