diff --git a/.github/workflows/example-builds-nightly-defaultarch.yml b/.github/workflows/example-builds-nightly-defaultarch.yml
index 2fb1393..40b9a88 100644
--- a/.github/workflows/example-builds-nightly-defaultarch.yml
+++ b/.github/workflows/example-builds-nightly-defaultarch.yml
@@ -19,7 +19,14 @@ jobs:
       fail-fast: false
       matrix:
         julia-version: [nightly, 1.10-nightly]
-        os: [ubuntu-latest, macOS-latest, windows-latest]
+        os:
+          - ubuntu-latest
+          - windows-latest
+          - macos-11 # Intel
+          - macos-12 # Intel
+          - macos-13 # Intel
+          - macos-14 # Apple Silicon
+          - macos-latest # Currently Intel, but will probably point to Apple Silicon in the future
 
     steps:
       - uses: actions/checkout@v4
diff --git a/lib/installer.js b/lib/installer.js
index f1aba02..fcd82f5 100644
--- a/lib/installer.js
+++ b/lib/installer.js
@@ -156,10 +156,23 @@ function getNightlyFileName(arch) {
         if (arch == 'x86') {
             throw new Error('32-bit Julia is not available on macOS');
         }
-        versionExt = '-mac64';
+        else if (arch == 'aarch64') {
+            versionExt = '-macaarch64';
+        }
+        else {
+            versionExt = '-mac64';
+        }
     }
     else if (osPlat === 'linux') {
-        versionExt = arch == 'x64' ? '-linux64' : '-linux32';
+        if (arch == 'x86') {
+            versionExt = '-linux32';
+        }
+        else if (arch == 'aarch64') {
+            versionExt = '-linux-aarch64';
+        }
+        else {
+            versionExt = '-linux64';
+        }
     }
     else {
         throw new Error(`Platform ${osPlat} is not supported`);
diff --git a/src/installer.ts b/src/installer.ts
index 25aede5..f6c040a 100644
--- a/src/installer.ts
+++ b/src/installer.ts
@@ -128,10 +128,19 @@ function getNightlyFileName(arch: string): string {
     } else if (osPlat == 'darwin') {
         if (arch == 'x86') {
             throw new Error('32-bit Julia is not available on macOS')
+        } else if (arch == 'aarch64') {
+            versionExt = '-macaarch64'
+        } else {
+            versionExt = '-mac64'
         }
-        versionExt = '-mac64'
     } else if (osPlat === 'linux') {
-        versionExt = arch == 'x64' ? '-linux64' : '-linux32'
+        if (arch == 'x86') {
+            versionExt = '-linux32'
+        } else if (arch == 'aarch64') {
+            versionExt = '-linux-aarch64'
+        } else {
+            versionExt = '-linux64'
+        }
     } else {
         throw new Error(`Platform ${osPlat} is not supported`)
     }