diff --git a/constraints.txt b/constraints.txt
index e3a5e73..be3bccf 100644
--- a/constraints.txt
+++ b/constraints.txt
@@ -60,7 +60,7 @@ numpy==1.24.2
     # via
     #   contourpy
     #   matplotlib
-packaging==23.0
+packaging==23.1
     # via matplotlib
 pillow==9.5.0
     # via
diff --git a/requirements-dev.txt b/requirements-dev.txt
index 9f1d841..9cf722c 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -10,7 +10,7 @@ asgiref==3.6.0
     #   django
 async-generator==1.10
     # via trio
-attrs==22.2.0
+attrs==23.1.0
     # via
     #   outcome
     #   pytest
@@ -71,7 +71,7 @@ nodeenv==1.7.0
     # via pre-commit
 outcome==1.2.0
     # via trio
-packaging==23.0
+packaging==23.1
     # via
     #   -c constraints.txt
     #   black
@@ -174,7 +174,7 @@ wsproto==1.2.0
     # via trio-websocket
 
 # The following packages are considered to be unsafe in a requirements file:
-pip==23.0.1
+pip==23.1
     # via pip-tools
 setuptools==67.6.1
     # via
diff --git a/requirements.txt b/requirements.txt
index b01ff81..9593082 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -60,7 +60,7 @@ numpy==1.24.2
     # via
     #   contourpy
     #   matplotlib
-packaging==23.0
+packaging==23.1
     # via matplotlib
 pillow==9.5.0
     # via