diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 8f828d7..212d1d0 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -11,16 +11,6 @@ jobs:
     - uses: actions/checkout@v2
     - name: dependencies
       run: sudo apt install gcc-10 g++-10 libgcc-10-dev
-    - name: dependencies
-      run: |
-           git clone https://github.com/jeremy-rifkin/libdwarf-code.git
-           cd libdwarf-code
-           git checkout b07d7201fd38a7dd8e6914ec4da120ef60dde262
-           mkdir build && cd build
-           cmake .. -DBUILD_SHARED_LIBS=On -DLIBDWARF_BUILD_SHARED=On
-           make -j
-           sudo make install VERBOSE=1
-           sudo find /usr -name "libdwarf.h"
     - name: build
       run: |
            pip3 install colorama
@@ -29,15 +19,6 @@ jobs:
     runs-on: macos-13
     steps:
     - uses: actions/checkout@v2
-    - name: dependencies
-      run: |
-           git clone https://github.com/jeremy-rifkin/libdwarf-code.git
-           cd libdwarf-code
-           git checkout b07d7201fd38a7dd8e6914ec4da120ef60dde262
-           mkdir build && cd build
-           cmake .. -DBUILD_SHARED_LIBS=On -DLIBDWARF_BUILD_SHARED=On
-           make -j
-           sudo make install
     - name: build
       run: |
            pip3 install colorama
diff --git a/ci/build-in-all-configs.py b/ci/build-in-all-configs.py
index 9d69349..493cbd8 100644
--- a/ci/build-in-all-configs.py
+++ b/ci/build-in-all-configs.py
@@ -57,7 +57,6 @@ def build(matrix):
             f"-D{matrix['symbols']}=On",
             f"-D{matrix['demangle']}=On",
             "-DCPPTRACE_BACKTRACE_PATH=/usr/lib/gcc/x86_64-linux-gnu/10/include/backtrace.h",
-            "-DCPPTRACE_USE_SYSTEM_LIBDWARF=On"
         )
         if succeeded:
             run_command("make", "-j", "VERBOSE=1")
@@ -102,7 +101,6 @@ def build_full_or_auto(matrix):
             f"-DCMAKE_CXX_COMPILER={matrix['compiler']}",
             f"-DCMAKE_CXX_STANDARD={matrix['std']}",
             f"-DCPPTRACE_BACKTRACE_PATH=/usr/lib/gcc/x86_64-linux-gnu/10/include/backtrace.h",
-            "-DCPPTRACE_USE_SYSTEM_LIBDWARF=On"
         ]
         if matrix["config"] != "":
             args.append(f"{matrix['config']}")