diff --git a/requirements.txt b/requirements.txt
index 4ec2a67..37bbef0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@ chardet==5.2.0
 idna==3.4
 jsonschema==4.19.1
 kinto-http==11.0.1
-pyrsistent==0.19.3
+pyrsistent==0.20.0
 requests==2.31.0
 ruamel.yaml==0.18.5
 six==1.16.0