diff --git a/.ci_support/environment-docs.yml b/.ci_support/environment-docs.yml
index b07fcece..f9e9d6e3 100644
--- a/.ci_support/environment-docs.yml
+++ b/.ci_support/environment-docs.yml
@@ -9,7 +9,7 @@ dependencies:
 - openmpi
 - cloudpickle =3.0.0
 - mpi4py =3.1.6
-- tqdm =4.66.2
+- tqdm =4.66.4
 - pyzmq =26.0.2
 - flux-core
 - jupyter-book =1.0.0
diff --git a/.ci_support/environment-mpich.yml b/.ci_support/environment-mpich.yml
index 202a3b64..00aa31d3 100644
--- a/.ci_support/environment-mpich.yml
+++ b/.ci_support/environment-mpich.yml
@@ -6,5 +6,5 @@ dependencies:
 - mpich
 - cloudpickle =3.0.0
 - mpi4py =3.1.6
-- tqdm =4.66.2
+- tqdm =4.66.4
 - pyzmq =26.0.2
diff --git a/.ci_support/environment-openmpi.yml b/.ci_support/environment-openmpi.yml
index 3214294c..a6cda9ba 100644
--- a/.ci_support/environment-openmpi.yml
+++ b/.ci_support/environment-openmpi.yml
@@ -6,5 +6,5 @@ dependencies:
 - openmpi
 - cloudpickle =3.0.0
 - mpi4py =3.1.6
-- tqdm =4.66.2
+- tqdm =4.66.4
 - pyzmq =26.0.2
diff --git a/.ci_support/environment-win.yml b/.ci_support/environment-win.yml
index 7551e67a..9c633855 100644
--- a/.ci_support/environment-win.yml
+++ b/.ci_support/environment-win.yml
@@ -6,5 +6,5 @@ dependencies:
 - msmpi
 - cloudpickle =3.0.0
 - mpi4py =3.1.6
-- tqdm =4.66.2
+- tqdm =4.66.4
 - pyzmq =26.0.2
diff --git a/pyproject.toml b/pyproject.toml
index ddc04349..5531579e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -27,7 +27,7 @@ dependencies = [
     "cloudpickle==3.0.0",
     "mpi4py==3.1.6",
     "pyzmq==26.0.2",
-    "tqdm==4.66.2",
+    "tqdm==4.66.4",
 ]
 dynamic = ["version"]