diff --git a/requirements.txt b/requirements.txt
index 588eb3f1..f0cb05b7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-fontmake>=3.8.1
+fontmake>=3.9.0
 gftools[qa]>=0.9.52
 drawbot-skia>=0.5.0
 sh>=2.0.6