diff --git a/.binder/environment.yml b/.binder/environment.yml
index 9e772e2b..cb334f95 100644
--- a/.binder/environment.yml
+++ b/.binder/environment.yml
@@ -14,7 +14,7 @@ dependencies:
 - pympipool =0.7.13
 - python-graphviz =0.20.3
 - toposort =1.10
-- typeguard =4.1.5
+- typeguard =4.2.1
 - ase =3.22.1
 - atomistics =0.1.23
 - lammps
diff --git a/.ci_support/environment.yml b/.ci_support/environment.yml
index 879c77e0..a809023f 100644
--- a/.ci_support/environment.yml
+++ b/.ci_support/environment.yml
@@ -14,4 +14,4 @@ dependencies:
 - pympipool =0.7.13
 - python-graphviz =0.20.3
 - toposort =1.10
-- typeguard =4.1.5
+- typeguard =4.2.1
diff --git a/docs/environment.yml b/docs/environment.yml
index ccfeea72..3e0741a9 100644
--- a/docs/environment.yml
+++ b/docs/environment.yml
@@ -19,4 +19,4 @@ dependencies:
 - pympipool =0.7.13
 - python-graphviz =0.20.3
 - toposort =1.10
-- typeguard =4.1.5
+- typeguard =4.2.1
diff --git a/setup.py b/setup.py
index 2750eded..163e43a0 100644
--- a/setup.py
+++ b/setup.py
@@ -38,7 +38,7 @@
         'pyiron_contrib==0.1.15',
         'pympipool==0.7.13',
         'toposort==1.10',
-        'typeguard==4.1.5',
+        'typeguard==4.2.1',
     ],
     extras_require={
         "node_library": [