diff --git a/.github/workflows/compiler-support.yml b/.github/workflows/compiler-support.yml
index 671b76e..afc4fb6 100644
--- a/.github/workflows/compiler-support.yml
+++ b/.github/workflows/compiler-support.yml
@@ -24,7 +24,6 @@ jobs:
           - { tag: "ubuntu-2204_gcc-11", name: "Ubuntu 22.04 G++ 11", cxx: "/usr/bin/g++-11", cc: "/usr/bin/gcc-11", runs-on: "ubuntu-22.04" }
           - { tag: "windows-2025_msvc17", name: "Windows Server 2025 MSVC 17", cxx: "", cc: "", runs-on: "windows-2025" }
           - { tag: "windows-2022_msvc17", name: "Windows Server 2022 MSVC 17", cxx: "", cc: "", runs-on: "windows-2022" }
-          - { tag: "macos-13_clang-15", name: "MacOS 13 Clang 15", cxx: "/usr/local/Cellar/llvm@15//15.0.7/bin/clang++", cc: "/usr/local/Cellar/llvm@15//15.0.7/bin/clang", runs-on: "macos-13" }
           - { tag: "macos-14-arm_clang-15", name: "MacOS 14 (Arm64) Clang 15", cxx: "/opt/homebrew/opt/llvm@15/bin/clang++", cc: "/opt/homebrew/opt/llvm@15/bin/clang", runs-on: "macos-14" }
           - { tag: "macos-15-arm_clang-18", name: "MacOS 15 (Arm64) Clang 18", cxx: "/opt/homebrew/opt/llvm@18/bin/clang++", cc: "/opt/homebrew/opt/llvm@18/bin/clang", runs-on: "macos-15" }
 #         x64 MacOS is payed only for >= 14
@@ -50,7 +49,6 @@ jobs:
       ubuntu-2204_gcc-11: ${{ steps.status.outputs.ubuntu-2204_gcc-11 }}
       windows-2025_msvc17: ${{ steps.status.outputs.windows-2025_msvc17 }}
       windows-2022_msvc17: ${{ steps.status.outputs.windows-2022_msvc17 }}
-      macos-13_clang-15: ${{ steps.status.outputs.macos-13_clang-15 }}
       macos-14-arm_clang-15: ${{ steps.status.outputs.macos-14-arm_clang-15 }}
       macos-15-arm_clang-18: ${{ steps.status.outputs.macos-15-arm_clang-18 }}
       macos-14_clang-15: ${{ steps.status.outputs.macos-14_clang-15 }}
@@ -62,7 +60,7 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v3
       - name: Set LDFLAGS=-Wl,-ld_classic
-        if: contains(matrix.compiler.tag, 'macos-13') || contains(matrix.compiler.tag, 'macos-14')
+        if: contains(matrix.compiler.tag, 'macos-14')
         run: echo "LDFLAGS=-Wl,-ld_classic" >> $GITHUB_ENV
       # Ubuntu 22.04 container has libstdc++13 installed which is incompatible with clang < 15 in C++20
       - name: Uninstall libstdc++-13-dev
diff --git a/README.md b/README.md
index bbf58d7..734563b 100644
--- a/README.md
+++ b/README.md
@@ -21,7 +21,7 @@ Tested and supported compilers:
 |-----------------------------------------------------------------------|---------------------------------------------------------------------|--------------------------------------------------------------------------|
 | [![ubuntu-2404_clang-16][img_ubuntu-2404_clang-16]][Compiler-Support] | [![windows-2025_msvc17][img_windows-2025_msvc17]][Compiler-Support] | [![macos-15-arm_clang-18][img_macos-15-arm_clang-18]][Compiler-Support]  |
 | [![ubuntu-2404_clang-17][img_ubuntu-2404_clang-17]][Compiler-Support] | [![windows-2022_msvc17][img_windows-2022_msvc17]][Compiler-Support] | [![macos-14-arm_clang-15][img_macos-14-arm_clang-15]][Compiler-Support]  |
-| [![ubuntu-2404_clang-18][img_ubuntu-2404_clang-18]][Compiler-Support] |                                                                     | [![macos-13_clang-15][img_macos-13_clang-15]][Compiler-Support]          |                                                                     |
+| [![ubuntu-2404_clang-18][img_ubuntu-2404_clang-18]][Compiler-Support] |                                                                     |           |                                                                     |
 | [![ubuntu-2404_gcc-12][img_ubuntu-2404_gcc-12]][Compiler-Support]     |                                                                     |                                                                          |
 | [![ubuntu-2404_gcc-13][img_ubuntu-2404_gcc-13]][Compiler-Support]     |                                                                     |                                                                          |
 | [![ubuntu-2404_gcc-14][img_ubuntu-2404_gcc-14]][Compiler-Support]     |                                                                     |                                                                          |
@@ -47,5 +47,4 @@ Tested and supported compilers:
 [img_windows-2022_msvc17]: https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/asyncpp/asyncpp-io/badges/compiler/windows-2022_msvc17/shields.json
 [img_macos-15-arm_clang-18]: https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/asyncpp/asyncpp-io/badges/compiler/macos-15-arm_clang-18/shields.json
 [img_macos-14-arm_clang-15]: https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/asyncpp/asyncpp-io/badges/compiler/macos-14-arm_clang-15/shields.json
-[img_macos-13_clang-15]: https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/asyncpp/asyncpp-io/badges/compiler/macos-13_clang-15/shields.json
 [Compiler-Support]: https://github.com/asyncpp/asyncpp-io/actions/workflows/compiler-support.yml