diff --git a/Doc/docs-requirements.txt b/Doc/docs-requirements.txt
index 3ecc993b2..30adbe51c 100644
--- a/Doc/docs-requirements.txt
+++ b/Doc/docs-requirements.txt
@@ -1,4 +1,4 @@
-sphinx==8.0.2
-sphinx_rtd_theme==3.0.0
+sphinx==8.1.3
+sphinx_rtd_theme==3.0.1
 reportlab==4.2.5
 freetype-py==2.5.1
diff --git a/dev-requirements.txt b/dev-requirements.txt
index 13bebe81f..036591192 100644
--- a/dev-requirements.txt
+++ b/dev-requirements.txt
@@ -6,4 +6,4 @@ mypy>=0.782
 readme_renderer[md]>=43.0
 
 # Pin black as each version could change formatting, breaking CI randomly.
-black==24.8.0
+black==24.10.0
diff --git a/requirements.txt b/requirements.txt
index 861a91aa7..6497646f4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -11,10 +11,10 @@ fs==2.4.16
 skia-pathops==0.8.0.post1; platform_python_implementation != "PyPy"
 # this is only required to run Tests/cu2qu/{ufo,cli}_test.py
 ufoLib2==0.16.0
-ufo2ft==3.3.0
+ufo2ft==3.3.1
 pyobjc==10.3.1; sys_platform == "darwin"
 freetype-py==2.5.1
 uharfbuzz==0.41.0
-glyphsLib==6.9.0 # this is only required to run Tests/varLib/interpolatable_test.py
+glyphsLib==6.9.2 # this is only required to run Tests/varLib/interpolatable_test.py
 lxml==5.3.0
 sympy==1.13.3