diff --git a/requirements-dev.txt b/requirements-dev.txt
index 13dcb97..159fefd 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -24,7 +24,7 @@ pathspec==0.11.2
 pip-tools==6.14.0
 platformdirs==4.0.0
 pluggy==1.2.0
-pydantic==1.9.0
+pydantic==2.5.3
 pyproject-hooks==1.0.0
 pytest==7.4.3
 pytest-cov==4.1.0
diff --git a/requirements-docs.txt b/requirements-docs.txt
index 31be8bf..717a283 100644
--- a/requirements-docs.txt
+++ b/requirements-docs.txt
@@ -18,7 +18,7 @@ mkdocs==1.3.0
 mkdocs-material==4.6.3
 mkdocstrings==0.10.0
 packaging==23.2
-pydantic==1.9.0
+pydantic==2.5.3
 pygments==2.17.2
 pymdown-extensions==10.2.1
 python-dateutil==2.8.2
diff --git a/requirements.txt b/requirements.txt
index fa1813f..90f94b7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,5 +4,5 @@
 #
 #    make freeze
 #
-pydantic==1.9.0
+pydantic==2.5.3
 typing-extensions==4.7.1