diff --git a/.github/workflows/cpp_ci.yml b/.github/workflows/cpp_ci.yml
index 8463125..7c13e8a 100644
--- a/.github/workflows/cpp_ci.yml
+++ b/.github/workflows/cpp_ci.yml
@@ -16,7 +16,7 @@ jobs:
     - name: downloading and installing Catch2
       run: git clone https://github.com/catchorg/Catch2.git && cd Catch2 && cmake -Bbuild -H. -DBUILD_TESTING=OFF && sudo cmake --build build/ --target install
     - name: downloading and installing fftw
-      run: wget http://www.fftw.org/fftw-3.3.10.tar.gz && tar xzf fftw-3.3.10.tar.gz && cd fftw-3.3.10 && ./configure && make && sudo make install
+      run: wget http://www.fftw.org/fftw-3.3.10.tar.gz && tar xzf fftw-3.3.10.tar.gz && cd fftw-3.3.10 && ./configure -enable-shared --enable-openmp --enable-threads && make && sudo make install
     - name: downloading and installing Eigen3
       run: git clone https://gitlab.com/libeigen/eigen.git && cd eigen && mkdir build && cd build && cmake ..
     - name: downloading and installing autodiff