diff --git a/pyproject.toml b/pyproject.toml
index 10d3b56..43691b5 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -56,7 +56,7 @@ dependencies = [
     "requests-ratelimiter~=0.4.0",
     "tqdm~=4.66",
     "unidecode~=1.3",
-    "urllib3~=2.1",
+    "urllib3~=1.26",
     "warcio~=1.7",
     "warc-s3~=0.1.1",
     "web-archive-api~=0.1.6",