diff --git a/requirements-dev.in b/requirements-dev.in
index a5bf9e4722..bd1d8385e8 100644
--- a/requirements-dev.in
+++ b/requirements-dev.in
@@ -5,7 +5,6 @@ mixer==7.2.2
 pytest
 pytest-django
 pytest-timeout
-pytest-subtests
 pre-commit==4.5.0
 nodeenv
 pip-tools==7.5.2
diff --git a/requirements-dev.txt b/requirements-dev.txt
index 3324d18400..91f78c9674 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -8,10 +8,6 @@ asgiref==3.3.4
     # via
     #   -c requirements.txt
     #   django
-attrs==23.1.0
-    # via
-    #   -c requirements.txt
-    #   pytest-subtests
 build==1.2.1
     # via pip-tools
 cfgv==3.3.1
@@ -77,16 +73,13 @@ pyproject-hooks==1.1.0
     # via
     #   build
     #   pip-tools
-pytest==8.4.2
+pytest==9.0.1
     # via
     #   -r requirements-dev.in
     #   pytest-django
-    #   pytest-subtests
     #   pytest-timeout
 pytest-django==4.11.1
     # via -r requirements-dev.in
-pytest-subtests==0.15.0
-    # via -r requirements-dev.in
 pytest-timeout==2.4.0
     # via -r requirements-dev.in
 python-dateutil==2.9.0.post0
@@ -124,7 +117,3 @@ virtualenv==20.26.6
     # via pre-commit
 wheel==0.38.1
     # via pip-tools
-
-# The following packages are considered to be unsafe in a requirements file:
-# pip
-# setuptools