diff --git a/packages/asciinema/build.sh b/packages/asciinema/build.sh
index d337dcf96f..ee40697443 100644
--- a/packages/asciinema/build.sh
+++ b/packages/asciinema/build.sh
@@ -12,7 +12,7 @@ TERMUX_PKG_BUILD_IN_SRC=true
 TERMUX_PKG_PLATFORM_INDEPENDENT=true
 TERMUX_PKG_HAS_DEBUG=false
 
-_PYTHON_VERSION=3.10
+_PYTHON_VERSION=$(. $TERMUX_SCRIPTDIR/packages/python/build.sh; echo $_MAJOR_VERSION)
 
 TERMUX_PKG_RM_AFTER_INSTALL="
 lib/python${_PYTHON_VERSION}/site-packages/easy-install.pth
diff --git a/packages/rdiff-backup/build.sh b/packages/rdiff-backup/build.sh
index 64b48b7562..c1fdfd726c 100644
--- a/packages/rdiff-backup/build.sh
+++ b/packages/rdiff-backup/build.sh
@@ -15,7 +15,7 @@ termux_step_make() {
 }
 
 termux_step_make_install() {
-	local _PYTHON_VERSION=3.10
+	local _PYTHON_VERSION=$(. $TERMUX_SCRIPTDIR/packages/python/build.sh; echo $_MAJOR_VERSION)
 	export PYTHONPATH=$TERMUX_PREFIX/lib/python${_PYTHON_VERSION}/site-packages
 	export CPPFLAGS+=" -I${TERMUX_PREFIX}/include/python${_PYTHON_VERSION}"
 	export LDFLAGS+=" -lpython${_PYTHON_VERSION}"