diff --git a/.gitignore b/.gitignore
index 29e447bb..11677baa 100644
--- a/.gitignore
+++ b/.gitignore
@@ -77,3 +77,7 @@ events.*.edf
 
 # Build directories
 build/
+
+# Julia manifests
+Manifest.toml
+Manifest-v*.toml
diff --git a/Julia/vec_add/Project.toml b/Julia/vec_add/Project.toml
new file mode 100644
index 00000000..e0f06cd5
--- /dev/null
+++ b/Julia/vec_add/Project.toml
@@ -0,0 +1,5 @@
+[deps]
+AMDGPU = "21141c5a-9bdb-4563-92ae-f87d6854732e"
+
+[compat]
+AMDGPU = "2"
diff --git a/Julia/vec_add/README.md b/Julia/vec_add/README.md
index ee939cb3..7e5d101e 100644
--- a/Julia/vec_add/README.md
+++ b/Julia/vec_add/README.md
@@ -10,11 +10,11 @@ If you are working on AAC6 or AAC7, make sure that a ROCm module is loaded with
 ```bash
 module load rocm
 ```
-Next, install the third-party `AMDGPU.jl package` and verify your GPU is detected:
+Next, move to this directory, install the third-party `AMDGPU.jl` package and verify your GPU is detected:
 
 ```bash
-julia -e 'using Pkg; Pkg.add("AMDGPU")'
-julia -e 'using AMDGPU; AMDGPU.versioninfo()'
+cd Julia/vec_add
+julia --project -e 'using Pkg; Pkg.instantiate(); using AMDGPU; AMDGPU.versioninfo()'
 ```
 
 ## Run
@@ -22,7 +22,7 @@ julia -e 'using AMDGPU; AMDGPU.versioninfo()'
 With Julia and the necessary packages installed, you can now run the script with
 
 ```bash
-julia vec_add.jl
+julia --project vec_add.jl
 ```
 
 If the scripts runs succesfully, it should output: `PASS!`
diff --git a/tests/julia_gpu_oceananigans.sh b/tests/julia_gpu_oceananigans.sh
index 0be5d86d..c553d996 100755
--- a/tests/julia_gpu_oceananigans.sh
+++ b/tests/julia_gpu_oceananigans.sh
@@ -27,15 +27,12 @@ export PATH=$PATH:"${WORK_DIR}/juliaup_install/bin"
 juliaup add 1.12
 juliaup default 1.12
 
-git clone https://github.com/CliMA/Oceananigans.jl.git &
-CLONE_PID=$!
-
-julia -e 'using Pkg; Pkg.add(["AMDGPU", "MPI", "Oceananigans", "CUDA", "FFTW", "KernelAbstractions", "SeawaterPolynomials", "OffsetArrays", "JLD2", "Adapt", "GPUArraysCore"])'
-
-wait $CLONE_PID
-pushd Oceananigans.jl/test
-julia test_amdgpu.jl
-popd
-rm -rf Oceananigans.jl
+julia -e '
+using Pkg;
+Pkg.activate(; temp=true);
+Pkg.add(["AMDGPU", "MPI", "Oceananigans", "CUDA", "FFTW", "KernelAbstractions", "SeawaterPolynomials", "OffsetArrays", "JLD2", "Adapt", "GPUArraysCore"]);
+using Oceananigans;
+include(joinpath(pkgdir(Oceananigans, "test", "test_amdgpu.jl")))
+'
 
 export HOME="${ORIG_HOME}"