diff --git a/.buildkite/runtests.yml b/.buildkite/runtests.yml
index 0843d7e..7266a30 100644
--- a/.buildkite/runtests.yml
+++ b/.buildkite/runtests.yml
@@ -15,35 +15,35 @@ steps:
       - JuliaCI/julia#v1:
           version: "nightly"
     command: |
-      julia --color=yes --project=.ci -e 'using Pkg; Pkg.instantiate()'
-      julia --color=yes --project=.ci .ci/create_sysimage_and_run_tests.jl
+      julia --color=yes --optimize=0 --project=.ci -e 'using Pkg; Pkg.instantiate()'
+      julia --color=yes --optimize=0 --project=.ci .ci/create_sysimage_and_run_tests.jl
     agents:
       queue: "julia"
       os: "linux"
       arch: "x86_64"
       cpuset_limited: "true"
     timeout_in_minutes: 120
-  # macOS aarch64
-  - label: ":macos: macos-aarch64"
-    plugins:
-      - JuliaCI/julia#v1:
-          version: "nightly"
-    command: |
-      julia --color=yes --project=.ci -e 'using Pkg; Pkg.instantiate()'
-      julia --color=yes --project=.ci .ci/create_sysimage_and_run_tests.jl
-    agents:
-      queue: "julia"
-      os: "macos"
-      arch: "aarch64"
-  # windows x86_64
-  - label: ":windows: windows-x86_64"
-    plugins:
-      - JuliaCI/julia#v1:
-          version: "nightly"
-    command: |
-      julia --color=yes --project=.ci -e 'using Pkg; Pkg.instantiate()'
-      julia --color=yes --project=.ci .ci/create_sysimage_and_run_tests.jl
-    agents:
-      queue: "julia"
-      os: "windows"
-      arch: "x86_64"
+  # # macOS aarch64
+  # - label: ":macos: macos-aarch64"
+  #   plugins:
+  #     - JuliaCI/julia#v1:
+  #         version: "nightly"
+  #   command: |
+  #     julia --color=yes --project=.ci -e 'using Pkg; Pkg.instantiate()'
+  #     julia --color=yes --project=.ci .ci/create_sysimage_and_run_tests.jl
+  #   agents:
+  #     queue: "julia"
+  #     os: "macos"
+  #     arch: "aarch64"
+  # # windows x86_64
+  # - label: ":windows: windows-x86_64"
+  #   plugins:
+  #     - JuliaCI/julia#v1:
+  #         version: "nightly"
+  #   command: |
+  #     julia --color=yes --project=.ci -e 'using Pkg; Pkg.instantiate()'
+  #     julia --color=yes --project=.ci .ci/create_sysimage_and_run_tests.jl
+  #   agents:
+  #     queue: "julia"
+  #     os: "windows"
+  #     arch: "x86_64"
diff --git a/.ci/create_sysimage_and_run_tests.jl b/.ci/create_sysimage_and_run_tests.jl
index 47c25a2..1c45c89 100644
--- a/.ci/create_sysimage_and_run_tests.jl
+++ b/.ci/create_sysimage_and_run_tests.jl
@@ -9,7 +9,13 @@ else
 end
 
 withenv("JULIA_IMAGE_THREADS" => ncores) do
-    create_sysimage(["LinearAlgebra", "Test", "Distributed", "Dates", "Printf", "Random"]; sysimage_path=sysimage, incremental=false, filter_stdlibs=true)
+    create_sysimage(
+        ["LinearAlgebra", "Test", "Distributed", "Dates", "Printf", "Random"];
+        sysimage_path=sysimage,
+        incremental=false,
+        filter_stdlibs=true,
+        sysimage_build_args = `--optimize=0`
+    )
 end
 
 current_dir = @__DIR__