diff --git a/docs/requirements.txt b/docs/requirements.txt
index 773c061..7d6e37e 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -8,7 +8,7 @@ requests-cache
 shapely>=1.5.13
 # The commit introducing the following line and the version for vcrpy can be reverted
 # once https://github.com/kevin1024/vcrpy/issues/688 is fixed
-urllib3==1.26.14
+urllib3==2.6.0
 vcrpy==4.2.1
 pytest
 pytest-cov
diff --git a/requirements.txt b/requirements.txt
index 5a3f12d..10f1a51 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,7 +8,7 @@ requests-cache>=1.0.0
 shapely>=1.5.13
 # The commit introducing the following line and the version for vcrpy can be reverted
 # once https://github.com/kevin1024/vcrpy/issues/688 is fixed
-urllib3==1.26.14
+urllib3==2.6.0
 vcrpy==4.2.1
 pytest
 pytest-cov