diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 633f4260..d39854f8 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -17,7 +17,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
-        rust: [nightly, stable, '1.65']
+        rust: [nightly, stable, '1.70']
     runs-on: ${{ matrix.os }}
     continue-on-error: ${{ matrix.rust == 'nightly' }}
 
@@ -86,7 +86,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        rust: [nightly, stable, '1.65']
+        rust: [nightly, stable, '1.70']
     continue-on-error: ${{ matrix.rust == 'nightly' }}
     steps:
     - uses: actions/checkout@v4
@@ -132,7 +132,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        rust: [nightly, stable, '1.65']
+        rust: [nightly, stable, '1.70']
     continue-on-error: ${{ matrix.rust == 'nightly' }}
     steps:
     - uses: actions/checkout@v4