diff --git a/crossbar-requirements.txt b/crossbar-requirements.txt
index a3422955e..e36b2af82 100644
--- a/crossbar-requirements.txt
+++ b/crossbar-requirements.txt
@@ -4,4 +4,4 @@ crossbar==19.11.1
 # For crossbar
 idna==2.5
 msgpack==0.6.2
-urllib3==1.24.3
+urllib3==1.26.2
diff --git a/dev-requirements.txt b/dev-requirements.txt
index 62d69ab30..b778cadef 100644
--- a/dev-requirements.txt
+++ b/dev-requirements.txt
@@ -1,10 +1,10 @@
 pytest-cov==2.8.1
 pytest-isort==0.3.1
-pytest-mock==1.12.1
+pytest-mock==2.0.0
 pytest-pylint==0.14.1
 pytest-dependency==0.4.0
 yapf==0.28.0
-psutil==5.6.3
+psutil==5.6.7
 -r doc-requirements.txt
 -r crossbar-requirements.txt
 -r onewire-requirements.txt
diff --git a/doc-requirements.txt b/doc-requirements.txt
index bae14bb58..add24472e 100644
--- a/doc-requirements.txt
+++ b/doc-requirements.txt
@@ -1,3 +1,3 @@
-Sphinx==2.2.1
+Sphinx==2.3.1
 sphinx_rtd_theme==0.4.3
 docutils==0.15.2
diff --git a/requirements.txt b/requirements.txt
index ac061d031..c8477441c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@ attrs==19.3.0
 jinja2==2.10.3
 pexpect==4.7
 https://github.com/labgrid-project/pyserial/archive/v3.4.0.1.zip#egg=pyserial
-pytest==5.3.1
+pytest==5.3.2
 pyudev==0.21.0
 requests==2.22.0
 xmodem==0.4.5