diff --git a/charms/kfp-metadata-writer/requirements-unit.txt b/charms/kfp-metadata-writer/requirements-unit.txt
index 24f48ced..63ceff85 100644
--- a/charms/kfp-metadata-writer/requirements-unit.txt
+++ b/charms/kfp-metadata-writer/requirements-unit.txt
@@ -104,9 +104,9 @@ pkgutil-resolve-name==1.3.10
     #   jsonschema
 pluggy==1.5.0
     # via pytest
-pydantic==2.6.4
+pydantic==2.9.1
     # via -r requirements.txt
-pydantic-core==2.16.3
+pydantic-core==2.23.3
     # via
     #   -r requirements.txt
     #   pydantic
diff --git a/charms/kfp-metadata-writer/requirements.in b/charms/kfp-metadata-writer/requirements.in
index b78c1db8..b3ed26e3 100644
--- a/charms/kfp-metadata-writer/requirements.in
+++ b/charms/kfp-metadata-writer/requirements.in
@@ -9,7 +9,7 @@ ops
 # To avoid build-time errors, pydantic has to be pinned to a version that can be built
 # with the rustc version that the OS can provide.
 # Remove this pin when the base OS can install rustc v1.76 or newer.
-pydantic>=2.6,<2.7
+pydantic>=2.9,<2.10
 serialized-data-interface
 # from loki_k8s.v1.loki_push_api.py
 cosl
diff --git a/charms/kfp-metadata-writer/requirements.txt b/charms/kfp-metadata-writer/requirements.txt
index e5eb3ed9..b69ad7a3 100644
--- a/charms/kfp-metadata-writer/requirements.txt
+++ b/charms/kfp-metadata-writer/requirements.txt
@@ -60,9 +60,9 @@ ordered-set==4.1.0
     # via deepdiff
 pkgutil-resolve-name==1.3.10
     # via jsonschema
-pydantic==2.6.4
+pydantic==2.9.1
     # via -r requirements.in
-pydantic-core==2.16.3
+pydantic-core==2.23.3
     # via pydantic
 pyrsistent==0.19.3
     # via jsonschema