diff --git a/requirements/pdf.txt b/requirements/pdf.txt
index 082f81e0f..9851880b2 100644
--- a/requirements/pdf.txt
+++ b/requirements/pdf.txt
@@ -24,7 +24,7 @@ cycler==0.11.0
     # via matplotlib
 effdet==0.3.0
     # via layoutparser
-fonttools==4.37.3
+fonttools==4.37.4
     # via matplotlib
 idna==3.4
     # via requests