diff --git a/Project.toml b/Project.toml
index f82ce567..3f1c6232 100644
--- a/Project.toml
+++ b/Project.toml
@@ -51,8 +51,8 @@ ChainRulesTestUtils = "1"
 DynamicPolynomials = "0.5, 0.6"
 Enzyme = "0.13.183"
 EnzymeTestUtils = "0.2"
-GPUArrays = "11"
-JLArrays = "0.3"
+GPUArrays = "11, 12"
+JLArrays = "0.3, 0.4"
 LRUCache = "1"
 LinearAlgebra = "1.6"
 Logging = "1.6"
diff --git a/docs/src/changelog.md b/docs/src/changelog.md
index 399232cc..5e5dc88e 100644
--- a/docs/src/changelog.md
+++ b/docs/src/changelog.md
@@ -11,6 +11,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Changed
 
+- Compat with GPUArrays is extended to include 12, and with JLArrays to include 0.4.
+
 ### Deprecated
 
 ### Removed
diff --git a/test/allocator.jl b/test/allocator.jl
index 32d9c3f6..030e4dcc 100644
--- a/test/allocator.jl
+++ b/test/allocator.jl
@@ -361,17 +361,19 @@ end
         @test buffer.offset == 0
         @test buffer.max_offset > 0
 
-        # Disjoint JLArray slices are reported as aliases once the buffer is warm.
+        # Disjoint JLArray slices are reported as aliases once the buffer is warm, unless
+        # JLArrays implements `GPUArrays.memory_location` (JLArrays v0.4.2, GPUArrays v12.1).
         # https://github.com/JuliaGPU/GPUArrays.jl/pull/803
         # https://github.com/QuantumKitHub/StridedViews.jl/pull/57
-        @test_broken begin
+        aliasing_fixed = pkgversion(JLArrays) ≥ v"0.4.2"
+        @test begin
             @tensor allocator = buffer begin
                 HRAA3[a, s1, s2, c] := ρₗ[a, a'] * A1[a', t1, b] * A2[b, t2, c'] *
                     ρᵣ[c', c] * H[s1, s2, t1, t2]
             end
             collect(HRAA3) ≈ collect(HRAA1)
-        end
-        continue # Later checks require the warm-buffer contraction to succeed.
+        end broken = !aliasing_fixed
+        aliasing_fixed || continue # Later checks require the warm-buffer contraction to succeed.
 
         # the first contraction already recorded the full requirement, so it no longer grows
         max0 = buffer.max_offset
diff --git a/test/gpu.jl b/test/gpu.jl
index 0a49ebb9..bc5a5e39 100644
--- a/test/gpu.jl
+++ b/test/gpu.jl
@@ -183,8 +183,9 @@ end
         @test buffer.offset == 0
         @test buffer.max_offset > 0
 
-        if AT === JLArray
-            # Disjoint JLArray slices are reported as aliases once the buffer is warm.
+        if AT === JLArray && pkgversion(JLArrays) < v"0.4.2"
+            # Disjoint JLArray slices are reported as aliases once the buffer is warm, unless
+            # JLArrays implements `GPUArrays.memory_location` (JLArrays v0.4.2, GPUArrays v12.1).
             # https://github.com/JuliaGPU/GPUArrays.jl/pull/803
             # https://github.com/QuantumKitHub/StridedViews.jl/pull/57
             @test_broken begin