diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e1ccbf4d..419e619c 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -27,7 +27,7 @@ jobs:
     if: "! contains(toJSON(github.event.commits.*.message), '[skip ci]')"
     strategy:
       matrix:
-        python-version: [3.8, "3.10", "3.11", "3.13", "pypy-3.9"]
+        python-version: [3.9, "3.10", "3.11", "3.13", "pypy-3.9"]
         platform: [ubuntu-latest, windows-latest]
         exclude:
           - platform: windows-latest
diff --git a/README.md b/README.md
index e776f128..55fd6817 100644
--- a/README.md
+++ b/README.md
@@ -7,7 +7,7 @@ Version][]][1]
 
 ## Installation
 
-Fontmake requires Python 3.8 or later.
+Fontmake requires Python 3.9 or later.
 
 Releases are available on [PyPI][] and can be installed with [pip][].
 
diff --git a/requirements.txt b/requirements.txt
index 9e6fa7d3..d0306fbe 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,14 +1,14 @@
-fonttools[ufo,repacker,lxml,unicode]==4.55.0; platform_python_implementation == 'CPython'
-fonttools[ufo,repacker,unicode]==4.55.0; platform_python_implementation != 'CPython'
-glyphsLib==6.9.5
-ufo2ft==3.3.1
+fonttools[ufo,repacker,lxml,unicode]==4.59.1; platform_python_implementation == 'CPython'
+fonttools[ufo,repacker,unicode]==4.59.1; platform_python_implementation != 'CPython'
+glyphsLib==6.11.6
+ufo2ft==3.6.0
 fontMath==0.9.4
 booleanOperations==0.9.0
-ufoLib2==0.17.0
+ufoLib2==0.18.1
 cffsubr==0.3.0
 compreffor==0.5.6
-ttfautohint-py==0.5.1
+ttfautohint-py==0.6.0
 
 # optional, for experimental reading/writing ufoLib2's UFO as json
-cattrs==24.1.2
-orjson==3.10.12; platform_python_implementation == 'CPython'
+cattrs==25.1.1
+orjson==3.11.3; platform_python_implementation == 'CPython'
diff --git a/setup.py b/setup.py
index 6c878da7..85bfc06b 100644
--- a/setup.py
+++ b/setup.py
@@ -30,10 +30,10 @@
 
 dep_versions = {
     "fontMath": ">=0.9.4",
-    "fonttools": ">=4.54.1",
-    "glyphsLib": ">=6.9.2",
-    "ufo2ft": ">=3.3.1",
-    "ufoLib2": ">=0.16.0",
+    "fonttools": ">=4.59.1",
+    "glyphsLib": ">=6.11.6",
+    "ufo2ft": ">=3.6.0",
+    "ufoLib2": ">=0.18.1",
 }
 
 dep_extras = {
@@ -45,13 +45,13 @@
 }
 
 extras_require = {
-    "pathops": ["skia-pathops>=0.3.0"],
+    "pathops": ["skia-pathops>=0.8.0"],
     # this is now default; kept here for backward compatibility
     "lxml": [],
     # MutatorMath is no longer supported but a dummy extras is kept below
     # to avoid fontmake installation failing if requested
     "mutatormath": [],
-    "autohint": ["ttfautohint-py>=0.5.0"],
+    "autohint": ["ttfautohint-py>=0.6.0"],
     # For reading/writing ufoLib2's .ufo.json files (cattrs + orjson)
     "json": [f"ufoLib2[json]{dep_versions['ufoLib2']}"],
     # For compiling GPOS/GSUB using the harfbuzz repacker
@@ -95,7 +95,7 @@
     package_dir={"": "Lib"},
     entry_points={"console_scripts": ["fontmake = fontmake.__main__:main"]},
     setup_requires=wheel + ["setuptools_scm"],
-    python_requires=">=3.8",
+    python_requires=">=3.9",
     install_requires=install_requires,
     extras_require=extras_require,
     classifiers=[
diff --git a/tox.ini b/tox.ini
index 352bb4e8..d83962f7 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist = lint, py3{8,9,10,11,12,13}, pypy3, coverage-report
+envlist = lint, py3{9,10,11,12,13}, pypy3, coverage-report
 skip_missing_interpreters = true
 
 [testenv]