diff --git a/requirements.txt b/requirements.txt
index 883a08b8..82d7b099 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,23 +1,23 @@
 afdko==4.0.0
 appdirs==1.4.4
 attrs==23.1.0
-black==23.9.1
+black==24.4.2
 booleanOperations==0.9.0
-Brotli==1.0.9
-click==8.1.3
+Brotli==1.1.0
+click==8.1.7
 cu2qu==1.6.7.post2
 defcon==0.10.3
 fontMath==0.9.3
-fontParts==0.11.0
+fontParts==0.12.1
 fontPens==0.2.4
-fonttools==4.43.0
+fonttools==4.53.0
 fs==2.4.16
-lxml==4.9.3
+lxml==5.2.2
 MutatorMath==3.0.1
 pathspec>=0.9.0
-Pillow==10.0.1
+Pillow==10.3.0
 psautohint>=2.4.0
-pyclipper==1.3.0.post4
+pyclipper==1.3.0.post5
 pytz==2023.3
 regex==2023.10.3
 scour==0.38.2
@@ -26,5 +26,5 @@ toml==0.10.2
 typed-ast>=1.4.2
 ufonormalizer==0.6.1
 ufoProcessor==1.9.0
-unicodedata2==15.0.0
-zopfli==0.2.2
+unicodedata2==15.1.0
+zopfli==0.2.3