diff --git a/requirements/requirements-ci.txt b/requirements/requirements-ci.txt
index 20ab1acb4..fccdff740 100644
--- a/requirements/requirements-ci.txt
+++ b/requirements/requirements-ci.txt
@@ -441,7 +441,7 @@ pillow==9.0.1
     # via
     #   -r requirements-dev.txt
     #   matrix-synapse
-pip-tools==6.8.0
+pip-tools==6.9.0
     # via -r requirements-dev.txt
 platformdirs==2.2.0
     # via
diff --git a/requirements/requirements-dev.in b/requirements/requirements-dev.in
index 2756ee61a..d5f89ce9e 100644
--- a/requirements/requirements-dev.in
+++ b/requirements/requirements-dev.in
@@ -9,7 +9,7 @@
 # -r requirements-docs.txt
 
 # Dependencies
-pip-tools~=6.8.0  # this is used by 'deps.py'
+pip-tools~=6.9.0  # this is used by 'deps.py'
 
 # Linting
 flake8
diff --git a/requirements/requirements-dev.txt b/requirements/requirements-dev.txt
index bae9ec715..2212b494e 100644
--- a/requirements/requirements-dev.txt
+++ b/requirements/requirements-dev.txt
@@ -381,7 +381,7 @@ pickleshare==0.7.5
     # via ipython
 pillow==9.0.1
     # via matrix-synapse
-pip-tools==6.8.0
+pip-tools==6.9.0
     # via -r requirements-dev.in
 platformdirs==2.2.0
     # via