diff --git a/dev_tools/requirements/envs/dev.env.txt b/dev_tools/requirements/envs/dev.env.txt
index 896b79d39..805afe174 100644
--- a/dev_tools/requirements/envs/dev.env.txt
+++ b/dev_tools/requirements/envs/dev.env.txt
@@ -57,7 +57,7 @@ h5py==3.16.0
     # via
     #   -r deps/runtime.txt
     #   pyscf
-idna==3.13
+idna==3.15
     # via requests
 iniconfig==2.3.0
     # via pytest
diff --git a/dev_tools/requirements/envs/format.env.txt b/dev_tools/requirements/envs/format.env.txt
index 5ddf25422..72b700f8b 100644
--- a/dev_tools/requirements/envs/format.env.txt
+++ b/dev_tools/requirements/envs/format.env.txt
@@ -57,7 +57,7 @@ h5py==3.16.0
     # via
     #   -c envs/dev.env.txt
     #   -r deps/runtime.txt
-idna==3.13
+idna==3.15
     # via
     #   -c envs/dev.env.txt
     #   requests
diff --git a/dev_tools/requirements/envs/mypy.env.txt b/dev_tools/requirements/envs/mypy.env.txt
index 9c61c6163..d583e00b9 100644
--- a/dev_tools/requirements/envs/mypy.env.txt
+++ b/dev_tools/requirements/envs/mypy.env.txt
@@ -49,7 +49,7 @@ h5py==3.16.0
     # via
     #   -c envs/dev.env.txt
     #   -r deps/runtime.txt
-idna==3.13
+idna==3.15
     # via
     #   -c envs/dev.env.txt
     #   requests
diff --git a/dev_tools/requirements/envs/pylint.env.txt b/dev_tools/requirements/envs/pylint.env.txt
index 44db3c43d..d3259ecc8 100644
--- a/dev_tools/requirements/envs/pylint.env.txt
+++ b/dev_tools/requirements/envs/pylint.env.txt
@@ -81,7 +81,7 @@ h5py==3.16.0
     #   -c envs/dev.env.txt
     #   -r deps/runtime.txt
     #   pyscf
-idna==3.13
+idna==3.15
     # via
     #   -c envs/dev.env.txt
     #   requests
diff --git a/dev_tools/requirements/envs/pytest-extra.env.txt b/dev_tools/requirements/envs/pytest-extra.env.txt
index 83d6e6b09..c5ebf28cb 100644
--- a/dev_tools/requirements/envs/pytest-extra.env.txt
+++ b/dev_tools/requirements/envs/pytest-extra.env.txt
@@ -73,7 +73,7 @@ h5py==3.16.0
     #   -c envs/dev.env.txt
     #   -r deps/runtime.txt
     #   pyscf
-idna==3.13
+idna==3.15
     # via
     #   -c envs/dev.env.txt
     #   requests
diff --git a/dev_tools/requirements/envs/pytest.env.txt b/dev_tools/requirements/envs/pytest.env.txt
index 3fe3a730c..7ff0cd42d 100644
--- a/dev_tools/requirements/envs/pytest.env.txt
+++ b/dev_tools/requirements/envs/pytest.env.txt
@@ -68,7 +68,7 @@ h5py==3.16.0
     # via
     #   -c envs/dev.env.txt
     #   -r deps/runtime.txt
-idna==3.13
+idna==3.15
     # via
     #   -c envs/dev.env.txt
     #   requests