diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index b8f3b3d..4f5045b 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -24,7 +24,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        swift: [5.9, latest, 6.0-snapshot]
+        swift: [6.0-snapshot]
 
     steps:
       - name: Install Swift
@@ -45,7 +45,7 @@ jobs:
           restore-keys: ${{ runner.os }}-${{ matrix.swift }}-spm-
 
       - name: Resolve Swift dependencies
-        run: swift package resolve
+        run: /home/runner/.local/share/swiftly/toolchains/6.0-snapshot-2024-06-13/usr/bin/swift package resolve
 
       - name: Run Unit Tests
-        run: swift test --parallel
+        run: /home/runner/.local/share/swiftly/toolchains/6.0-snapshot-2024-06-13/usr/bin/swift test --parallel