diff --git a/docker/3_buildwheels/build.sh b/docker/3_buildwheels/build.sh
index 38de297..21ab783 100755
--- a/docker/3_buildwheels/build.sh
+++ b/docker/3_buildwheels/build.sh
@@ -33,7 +33,10 @@ docker run --rm -i \
     -v "$TOPDEVDIR:/data/topdev" \
     $DOCKER_IMAGE_NAME <<EOT
 set -e
-pip3 install wheel poetry
+
+# Pin poetry to 1.0, as more recent version to not support nested filesystem package
+# dependencies.
+pip3 install wheel poetry==1.0
 
 # Build wheels for all dependencies.
 cd /data/topdev/blender-cloud