diff --git a/requirements/ci.txt b/requirements/ci.txt
index b651bb4..cf8ba12 100644
--- a/requirements/ci.txt
+++ b/requirements/ci.txt
@@ -6,14 +6,13 @@
 #
 cachetools==7.0.1
     # via tox
-chardet==6.0.0.post1
-    # via tox
 colorama==0.4.6
     # via tox
 distlib==0.4.0
     # via virtualenv
-filelock==3.24.3
+filelock==3.25.0
     # via
+    #   python-discovery
     #   tox
     #   virtualenv
 packaging==26.0
@@ -22,13 +21,16 @@ packaging==26.0
     #   tox
 platformdirs==4.9.2
     # via
+    #   python-discovery
     #   tox
     #   virtualenv
 pluggy==1.6.0
     # via tox
 pyproject-api==1.10.0
     # via tox
-tox==4.44.0
+python-discovery==1.1.0
+    # via virtualenv
+tox==4.47.0
     # via -r requirements/ci.in
-virtualenv==20.38.0
+virtualenv==21.1.0
     # via tox
diff --git a/requirements/dev.txt b/requirements/dev.txt
index 770a19d..23dde1e 100644
--- a/requirements/dev.txt
+++ b/requirements/dev.txt
@@ -22,10 +22,7 @@ cachetools==7.0.1
     #   -r requirements/ci.txt
     #   tox
 chardet==6.0.0.post1
-    # via
-    #   -r requirements/ci.txt
-    #   diff-cover
-    #   tox
+    # via diff-cover
 click==8.3.1
     # via
     #   -r requirements/pip-tools.txt
@@ -66,16 +63,17 @@ django==5.2.11
     #   -r requirements/quality.txt
 edx-lint==5.6.0
     # via -r requirements/quality.txt
-filelock==3.24.3
+filelock==3.25.0
     # via
     #   -r requirements/ci.txt
+    #   python-discovery
     #   tox
     #   virtualenv
 iniconfig==2.3.0
     # via
     #   -r requirements/quality.txt
     #   pytest
-isort==8.0.0
+isort==8.0.1
     # via
     #   -r requirements/quality.txt
     #   pylint
@@ -111,6 +109,7 @@ platformdirs==4.9.2
     #   -r requirements/ci.txt
     #   -r requirements/quality.txt
     #   pylint
+    #   python-discovery
     #   tox
     #   virtualenv
 pluggy==1.6.0
@@ -165,6 +164,10 @@ pytest==9.0.2
     #   pytest-cov
 pytest-cov==7.0.0
     # via -r requirements/quality.txt
+python-discovery==1.1.0
+    # via
+    #   -r requirements/ci.txt
+    #   virtualenv
 python-slugify==8.0.4
     # via
     #   -r requirements/quality.txt
@@ -197,9 +200,9 @@ tomlkit==0.14.0
     # via
     #   -r requirements/quality.txt
     #   pylint
-tox==4.44.0
+tox==4.47.0
     # via -r requirements/ci.txt
-virtualenv==20.38.0
+virtualenv==21.1.0
     # via
     #   -r requirements/ci.txt
     #   tox
diff --git a/requirements/doc.txt b/requirements/doc.txt
index 4ceb038..cb365b8 100644
--- a/requirements/doc.txt
+++ b/requirements/doc.txt
@@ -20,7 +20,7 @@ backports-tarfile==1.2.0
     # via jaraco-context
 beautifulsoup4==4.14.3
     # via pydata-sphinx-theme
-certifi==2026.1.4
+certifi==2026.2.25
     # via requests
 cffi==2.0.0
     # via cryptography
diff --git a/requirements/quality.txt b/requirements/quality.txt
index 12b4636..08d3c3f 100644
--- a/requirements/quality.txt
+++ b/requirements/quality.txt
@@ -38,7 +38,7 @@ iniconfig==2.3.0
     # via
     #   -r requirements/test.txt
     #   pytest
-isort==8.0.0
+isort==8.0.1
     # via
     #   -r requirements/quality.in
     #   pylint