diff --git a/requirements-dev.txt b/requirements-dev.txt
index a3f16cd..ec3e8e3 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -18,22 +18,22 @@
     # via
     #   -r https://osm.etsi.org/gitweb/?p=osm/IM.git;a=blob_plain;f=requirements.txt;hb=v18.0
     #   pyangbind
-lxml==6.0.0
+lxml==6.0.2
     # via
     #   -r https://osm.etsi.org/gitweb/?p=osm/IM.git;a=blob_plain;f=requirements.txt;hb=v18.0
     #   pyang
     #   pyangbind
 osm-im @ git+https://osm.etsi.org/gerrit/osm/IM.git@v18.0
     # via -r requirements-dev.in
-pyang==2.6.1
+pyang==2.7.1
     # via
     #   -r https://osm.etsi.org/gitweb/?p=osm/IM.git;a=blob_plain;f=requirements.txt;hb=v18.0
     #   pyangbind
 pyangbind==0.8.6
     # via -r https://osm.etsi.org/gitweb/?p=osm/IM.git;a=blob_plain;f=requirements.txt;hb=v18.0
-pyyaml==6.0.2
+pyyaml==6.0.3
     # via -r https://osm.etsi.org/gitweb/?p=osm/IM.git;a=blob_plain;f=requirements.txt;hb=v18.0
-regex==2025.7.34
+regex==2025.9.18
     # via
     #   -r https://osm.etsi.org/gitweb/?p=osm/IM.git;a=blob_plain;f=requirements.txt;hb=v18.0
     #   pyangbind