diff --git a/.ci_support/environment.yml b/.ci_support/environment.yml
index caf38224e..d7ff998a0 100644
--- a/.ci_support/environment.yml
+++ b/.ci_support/environment.yml
@@ -1,7 +1,7 @@
 channels:
 - conda-forge
 dependencies:
-- aimsgb =1.1.0
+- aimsgb =1.1.1
 - ase =3.22.1
 - coverage
 - dscribe =2.1.0
diff --git a/pyproject.toml b/pyproject.toml
index 566fa985e..d1269774f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -38,7 +38,7 @@ Repository = "https://github.com/pyiron/structuretoolkit"
 [project.optional-dependencies]
 dscribe = ["dscribe==2.1.0"]
 grainboundary = [
-    "aimsgb==1.1.0",
+    "aimsgb==1.1.1",
     "pymatgen==2024.3.1",
 ]
 pyscal = ["pyscal2==2.10.18"]