diff --git a/requirements.txt b/requirements.txt
index 5e25e9e..092896c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -60,7 +60,7 @@ python-libsbml==5.19.7    # via cobra
 pytz==2022.7.1            # via pandas
 pyzmq==25.0.1             # via ipykernel, jupyter-client
 requests==2.28.2          # via Cobra2D (./setup.cfg)
-rfc3986[idna2008]==1.5.0  # via httpx
+rfc3986[idna2008]==2.0.0  # via httpx
 rich==13.3.2              # via Cobra2D (./setup.cfg), cobra
 ruamel-yaml==0.17.21      # via cobra
 ruamel-yaml-clib==0.2.7   # via ruamel-yaml