diff --git a/tei2json/requirements.txt b/tei2json/requirements.txt
index dbb06c7..2857199 100644
--- a/tei2json/requirements.txt
+++ b/tei2json/requirements.txt
@@ -59,7 +59,7 @@ prometheus-client==0.7.1
 promise==2.3
 prompt-toolkit==3.0.5
 ptyprocess==0.6.0
-pydantic==1.3
+pydantic==1.6.2
 pyfiglet==0.8.post1
 Pygments==2.6.1
 pyrsistent==0.16.0