diff --git a/.github/workflows/rust-ci.yml b/.github/workflows/rust-ci.yml
index 1932d36..dca6d2d 100644
--- a/.github/workflows/rust-ci.yml
+++ b/.github/workflows/rust-ci.yml
@@ -9,7 +9,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest]
-        rust: [stable, nightly]
+        rust: [stable]
     steps:
       - uses: actions/checkout@v2
       - uses: actions-rs/toolchain@v1
@@ -27,7 +27,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest]
-        rust: [stable, nightly]
+        rust: [stable]
     steps:
       - uses: actions/checkout@v2
       - uses: actions-rs/toolchain@v1
diff --git a/.github/workflows/ykpy-ci.yml b/.github/workflows/ykpy-ci.yml
index e2b0b29..3a40c61 100644
--- a/.github/workflows/ykpy-ci.yml
+++ b/.github/workflows/ykpy-ci.yml
@@ -46,7 +46,7 @@ jobs:
     runs-on: macos-latest
     strategy:
       matrix:
-        target: [x86_64]
+        target: [x86_64, aarch64]
     steps:
       - uses: actions/checkout@v3
       - uses: actions/setup-python@v4