diff --git a/conda/beat-devel/meta.yaml b/conda/beat-devel/meta.yaml
index 872e89ed9981fe5a13d19adbe6a6a53a4fa716ef..5c7bd2bf7b8d8f1bf9d0924aec9a3c09f21da4d8 100644
--- a/conda/beat-devel/meta.yaml
+++ b/conda/beat-devel/meta.yaml
@@ -2,7 +2,7 @@
 {% set nopin = ['ca-certificates', 'certifi', 'openssl', 'libstdcxx-ng', 'libgcc-ng', 'libcxx', 'libcxxabi'] %}
 package:
   name: beat-devel
-  version: 2019.04.18
+  version: 2019.04.30
 
 build:
   # the build number must be zero all the time.
@@ -15,7 +15,7 @@ build:
 requirements:
   host:
     - python {{ python }}
-    - bob-devel 2019.04.18
+    - bob-devel 2019.04.30
     - docker-py 3.6.0
     - flask 1.0.2
     - flask-cors 3.0.7
diff --git a/conda/bob-devel/meta.yaml b/conda/bob-devel/meta.yaml
index 040d2bf11c8d675b8e28235e652c0f01def32571..b0e33927c2095c3ca8c57be937adb8ad24c68c98 100644
--- a/conda/bob-devel/meta.yaml
+++ b/conda/bob-devel/meta.yaml
@@ -4,7 +4,7 @@ package:
   name: bob-devel
   # please update the version of beat-devel and update bob-devel's version there
   # as well in the same merge request.
-  version: 2019.04.18
+  version: 2019.04.30
 
 build:
   # the build number must be zero all the time.
@@ -53,6 +53,7 @@ requirements:
     - pillow 5.4.1
     - pkg-config 0.29.2
     - pyedflib 0.1.11
+    - cudatoolkit 9.0  # [linux]
     - pytorch 1.0.1  # [linux]
     - pyyaml 5.1
     - requests 2.21.0
@@ -87,8 +88,11 @@ requirements:
   {% endfor %}
 
 test:
+  imports:
+    - torch  # [linux]
   requires:
     - ffmpeg
+    - pytorch  # [linux]
   commands:
     # we expect these features from ffmpeg:
     - ffmpeg -codecs | grep "DEVI.S zlib"  # [unix]