diff --git a/.github/workflows/http3-linux.yml b/.github/workflows/http3-linux.yml
index 96991da685..bb8b5faf63 100644
--- a/.github/workflows/http3-linux.yml
+++ b/.github/workflows/http3-linux.yml
@@ -229,7 +229,7 @@ jobs:
             PKG_CONFIG_PATH=/home/runner/openssl/build/lib/pkgconfig:/home/runner/gnutls/build/lib/pkgconfig:/home/runner/wolfssl/build/lib/pkgconfig \
             --enable-lib-only --with-openssl --with-gnutls --with-wolfssl
           make install
-          sed -i.bak -E 's/^Requires: .+//g' "$PWD"/build/lib/pkgconfig/libngtcp2_crypto_gnutls.pc  # workaround for ngtcp2 1.14.0
+          #sed -i.bak -E 's/^Requires: .+//g' "$PWD"/build/lib/pkgconfig/libngtcp2_crypto_gnutls.pc  # workaround for ngtcp2 1.14.0
 
       - name: 'build nghttp2'
         if: ${{ steps.cache-nghttp2.outputs.cache-hit != 'true' }}
@@ -468,7 +468,7 @@ jobs:
           MATRIX_GENERATE: '${{ matrix.build.generate }}'
           MATRIX_PKG_CONFIG_PATH: '${{ matrix.build.PKG_CONFIG_PATH }}'
         run: |
-          [ -n "${MATRIX_PKG_CONFIG_PATH}" ] && export PKG_CONFIG_PATH="${MATRIX_PKG_CONFIG_PATH}"
+          [ -n "${MATRIX_PKG_CONFIG_PATH}" ] && export PKG_CONFIG_PATH="${MATRIX_PKG_CONFIG_PATH}:${PKG_CONFIG_PATH}"
           if [ "${MATRIX_BUILD}" = 'cmake' ]; then
             cmake -B bld -G Ninja \
               -DCMAKE_C_COMPILER_TARGET="$(uname -m)-pc-linux-gnu" -DBUILD_STATIC_LIBS=ON \