diff --git a/requirements.txt b/requirements.txt
index 4ae7fa0a..56faf662 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,11 +1,11 @@
-fonttools[repacker,ufo,unicode,lxml]==4.47.0; platform_python_implementation == 'CPython'
-fonttools[repacker,ufo,unicode]==4.47.0; platform_python_implementation != 'CPython'
+fonttools[repacker,ufo,unicode,lxml]==4.47.2; platform_python_implementation == 'CPython'
+fonttools[repacker,ufo,unicode]==4.47.2; platform_python_implementation != 'CPython'
 glyphsLib==6.6.0
 ufo2ft==2.33.4
 fontMath==0.9.3
 booleanOperations==0.9.0
 ufoLib2==0.16.0
-attrs==23.1.0
+attrs==23.2.0
 cffsubr==0.2.9.post1
 compreffor==0.5.5
 ttfautohint-py==0.5.1
diff --git a/setup.py b/setup.py
index e37058ac..cede7ed7 100644
--- a/setup.py
+++ b/setup.py
@@ -31,8 +31,8 @@
 dep_versions = {
     "attrs": ">=19",
     "fontMath": ">=0.9.3",
-    "fonttools": ">=4.42.0",
-    "glyphsLib": ">=6.2.5",
+    "fonttools": ">=4.47.2",
+    "glyphsLib": ">=6.6.0",
     "ufo2ft": ">=2.33.4",
     "ufoLib2": ">=0.16.0",
 }