diff --git a/build-recipes/macos_build_requirements.txt b/build-recipes/macos_build_requirements.txt
index e672bcf..5501052 100644
--- a/build-recipes/macos_build_requirements.txt
+++ b/build-recipes/macos_build_requirements.txt
@@ -1,2 +1,3 @@
 # Any additional requirements for building the application
-pyinstaller
\ No newline at end of file
+pyinstaller
+scipy==1.11.4  # hat problems with pyinstaller (scipy.special._cdflib not found)
diff --git a/build-recipes/win_build_requirements.txt b/build-recipes/win_build_requirements.txt
index 53e533c..6e74d32 100644
--- a/build-recipes/win_build_requirements.txt
+++ b/build-recipes/win_build_requirements.txt
@@ -1,4 +1,5 @@
 # Any additional requirements for building the application
 # https://github.com/rpy2/rpy2/issues/796
+pyinstaller
 rpy2==3.4.5
-pyinstaller
\ No newline at end of file
+scipy==1.11.4  # hat problems with pyinstaller (scipy.special._cdflib not found)