diff --git a/.buildkite/runtests.yml b/.buildkite/runtests.yml
index a21eb63..9c9d063 100644
--- a/.buildkite/runtests.yml
+++ b/.buildkite/runtests.yml
@@ -13,7 +13,7 @@ steps:
           gid: 1000
       # Julia installation inside the sandbox
       - JuliaCI/julia#v1:
-          version: "nightly"
+          version: "1"
           arch: "i686"
     command: |
       julia --color=yes --project=.ci -e 'using Pkg; Pkg.instantiate()'
@@ -38,7 +38,7 @@ steps:
           gid: 1000
       # Julia installation inside the sandbox
       - JuliaCI/julia#v1:
-          version: "nightly"
+          version: "1"
     command: |
       julia --color=yes --project=.ci --code-coverage=@ -e 'using Pkg; Pkg.instantiate()'
       julia --color=yes --project=.ci --code-coverage=@ .ci/create_sysimage_and_run_tests.jl
@@ -51,7 +51,7 @@ steps:
   - label: ":macos: macos-aarch64"
     plugins:
       - JuliaCI/julia#v1:
-          version: "nightly"
+          version: "1"
       - JuliaCI/julia-coverage#v1:
           codecov: true
     command: |
@@ -65,7 +65,7 @@ steps:
   - label: ":windows: windows-x86_64"
     plugins:
       - JuliaCI/julia#v1:
-          version: "nightly"
+          version: "1"
       - JuliaCI/julia-coverage#v1:
           codecov: true
     command: |
diff --git a/.ci/create_sysimage_and_run_tests.jl b/.ci/create_sysimage_and_run_tests.jl
index 47c25a2..fb7241e 100644
--- a/.ci/create_sysimage_and_run_tests.jl
+++ b/.ci/create_sysimage_and_run_tests.jl
@@ -13,7 +13,11 @@ withenv("JULIA_IMAGE_THREADS" => ncores) do
 end
 
 current_dir = @__DIR__
-cmd = """Base.runtests(["LinearAlgebra"]; propagate_project=true, ncores=$ncores)"""
+if VERSION >= v"1.12"
+    cmd = """Base.runtests(["LinearAlgebra"]; propagate_project=true, ncores=$ncores)"""
+else
+    cmd = """Base.runtests(["LinearAlgebra"]; ncores=$ncores)"""
+end
 withenv("JULIA_NUM_THREADS" => 1) do
     run(`$(Base.julia_cmd()) --sysimage=$sysimage --project=$current_dir -e $cmd`)
 end