diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a3c2d20a1..8531ca313 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -206,13 +206,13 @@ jobs:
       - name: Install wheel
         if: startsWith(matrix.os, 'ubuntu')
         run: |
-          pip install *cp38*manylinux*x86_64.whl
+          pip install *cp39*manylinux*x86_64.whl
 
       - name: Install wheel
         if: startsWith(matrix.os, 'windows')
         shell: bash
         run: |
-          pip install *cp38*win*.whl
+          pip install *cp39*win*.whl
 
       - name: Run tests
         shell: bash
@@ -319,7 +319,7 @@ jobs:
 
       - name: Install CTranslate2 wheel
         run: |
-          pip install *cp38*manylinux*x86_64.whl
+          pip install *cp39*manylinux*x86_64.whl
 
       - name: Install dependencies to build docs
         working-directory: docs