diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index f559086c..e074c413 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -14,16 +14,16 @@ jobs:
         os: [ ubuntu-20.04 ]
         sanitize: [ false ]
         build:
-          - { cc: gcc, cxx: g++, linker: ld, shell: /bin/bash }
+          - { cc: gcc, cxx: g++, linker: ld, shell: bash }
         include:
           - name: "Linux x64 (Ubuntu 20.04) - Clang 10 with ASan and UBSan"
             os: ubuntu-20.04
             sanitize: true
-            build: { cc: clang-10, cxx: clang++-10, linker: ld.lld-10 }
+            build: { cc: clang-10, cxx: clang++-10, linker: ld.lld-10, shell: bash }
           - name: "macOS (10.15) - Xcode 12.3"
             os: macos-10.15
             sanitize: false
-            build: { cc: clang, cxx: clang++, linker: ld.lld }
+            build: { cc: clang, cxx: clang++, linker: ld.lld, shell: bash }
           - name: "macOS (10.15) - Xcode 12.3 - M1"
             os: macos-m1
             sanitize: false