diff --git a/.binder/environment.yml b/.binder/environment.yml
index 584389bc..d82f3cdf 100644
--- a/.binder/environment.yml
+++ b/.binder/environment.yml
@@ -3,6 +3,7 @@ channels:
 dependencies:
 - hatchling =1.30.1
 - hatch-vcs =0.5.0
+- packaging =26.2
 - python >=3.11, <3.15
 - pydantic =2.12.5
 - pyiron_snippets =1.3.0
diff --git a/.ci_support/environment.yml b/.ci_support/environment.yml
index b5501582..b3121af0 100644
--- a/.ci_support/environment.yml
+++ b/.ci_support/environment.yml
@@ -3,6 +3,7 @@ channels:
 dependencies:
 - hatchling =1.30.1
 - hatch-vcs =0.5.0
+- packaging =26.2
 - python >=3.11, <3.15
 - pydantic =2.12.5
 - pyiron_snippets =1.3.0
diff --git a/.ci_support/lower-bounds.yml b/.ci_support/lower-bounds.yml
index 22c80349..437ef8ac 100644
--- a/.ci_support/lower-bounds.yml
+++ b/.ci_support/lower-bounds.yml
@@ -4,6 +4,7 @@ dependencies:
   - hatchling =1.28.0
   - hatch-vcs =0.5.0
   - numpy =1.26.4
+  - packaging =24.2
   - python =3.11
   - pydantic =2.12.0
   - pyiron_snippets =1.3.0
diff --git a/docs/environment.yml b/docs/environment.yml
index cef52ee0..15a93533 100644
--- a/docs/environment.yml
+++ b/docs/environment.yml
@@ -9,6 +9,7 @@ dependencies:
 - versioneer
 - hatchling =1.30.1
 - hatch-vcs =0.5.0
+- packaging =26.2
 - python >=3.11, <3.15
 - pydantic =2.12.5
 - pyiron_snippets =1.3.0
diff --git a/pyproject.toml b/pyproject.toml
index f370f05e..fed78d70 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -23,6 +23,7 @@ classifiers = [
     "Programming Language :: Python :: 3.14",
 ]
 dependencies = [
+    "packaging==26.2",
     "pydantic==2.12.5",
     "pyiron_snippets==1.3.0",
 ]