diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 236635717d95fb99b27e1d58229b043e10cae014..4c972435b2de64b1b5a4fd29ccf9b91c28355b7f 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -120,6 +120,7 @@ install tests:
   image: python:3.7
   before_script:
     - git submodule sync
+    - sleep 5
     - git submodule update --init --jobs=4
   script:
     - pip install --upgrade pip
@@ -143,6 +144,7 @@ dev setup tests:
   stage: test
   image: python:3.7
   script:
+    - sleep 5
     - pip install --upgrade pip
     - ./setup.sh
     - python -m nomad.cli parse tests/data/parsers/vasp/vasp.xml
diff --git a/dependencies/optimade-python-tools b/dependencies/optimade-python-tools
index 11af5d0b67b53abf2d6593b40aa9b4a4735012e2..b5731ab61f5ef0d019426523b8b21ad4c82596a2 160000
--- a/dependencies/optimade-python-tools
+++ b/dependencies/optimade-python-tools
@@ -1 +1 @@
-Subproject commit 11af5d0b67b53abf2d6593b40aa9b4a4735012e2
+Subproject commit b5731ab61f5ef0d019426523b8b21ad4c82596a2
diff --git a/dependencies/parsers/example b/dependencies/parsers/example
index c378ce3c667fa0b6bd93ecdfd5699b7b9e165fa5..ca9596fcf15f938122d55ae12222dede9e3610a0 160000
--- a/dependencies/parsers/example
+++ b/dependencies/parsers/example
@@ -1 +1 @@
-Subproject commit c378ce3c667fa0b6bd93ecdfd5699b7b9e165fa5
+Subproject commit ca9596fcf15f938122d55ae12222dede9e3610a0