diff --git a/docker/3_buildwheels/build.sh b/docker/3_buildwheels/build.sh
index 8974127..d22aa48 100755
--- a/docker/3_buildwheels/build.sh
+++ b/docker/3_buildwheels/build.sh
@@ -41,7 +41,7 @@ pip3 install --upgrade pip
 
 # Pin poetry to 1.0, as more recent version to not support nested filesystem package
 # dependencies.
-pip3 install wheel poetry==1.0
+pip3 install wheel poetry==1.0 cryptography==2.7
 
 # Build wheels for all dependencies.
 cd /data/topdev/blender-cloud