diff --git a/requirements.txt b/requirements.txt
index 35422d32..da19497f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,14 +1,14 @@
-twisted==19.7.0
+twisted==19.10.0
 cryptography==2.8
 configparser==4.0.2
 pyopenssl==19.0.0
-pyparsing==2.4.2
+pyparsing==2.4.5
 packaging==19.2
 appdirs==1.4.3
 pyasn1_modules==0.2.7
 attrs==19.3.0
 service_identity==18.1.0
-python-dateutil==2.8.0
+python-dateutil==2.8.1
 tftpy==0.8.0
 bcrypt==3.1.7
 treq