diff --git a/requirements.txt b/requirements.txt
index 1d20f4f5..e8f16ec9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@
 pre-commit==4.1.0
 
 # https://linkml.io
-linkml==1.8.5
+linkml==1.8.6
 
 # https://github.com/fcivaner/hashdir
 hashdir==0.24