diff --git a/packages/py-ebrains-kg-core/package.py b/packages/py-ebrains-kg-core/package.py
index c6eff2c94b78870eba090b3ae6584775943c1b42..cfe76f490abd501b0e14565e1f6bf3520dc6eefd 100644
--- a/packages/py-ebrains-kg-core/package.py
+++ b/packages/py-ebrains-kg-core/package.py
@@ -15,6 +15,7 @@ class PyEbrainsKgCore(PythonPackage):
 
     maintainers = ["ioannistsanaktsidis", "olinux"]
 
+    version('0.9.15', sha256='c672815ebcd6968f090620f68d85f0fbf282a83636c3a1845b078ef5ac5a06be')
     version('0.9.14', sha256='e898761abb999b09e5da49b25d13ffcadebaec7acd87ed079abe23f3bb12a5e7')
     version('0.9.13', sha256='25e155e9eb6c516dd33e29d9ff433c996630989a0f017c5920b66fe5334f2d82')
     version('0.9.12', sha256='244e52dffaec425bf65cf2d3d697969ec9036aaa028bf47fdddfb4911282f484')
diff --git a/spack.yaml b/spack.yaml
index 992f26fe0ef72c788a93ed8e22e69e80707dfbeb..737505b2b6bad787057d9778767b1e85507e683c 100644
--- a/spack.yaml
+++ b/spack.yaml
@@ -20,7 +20,7 @@ spack:
     - py-bluepymm@0.7.65
     - py-bluepyopt@1.13.86
     - py-ebrains-drive@0.5.1
-    - py-ebrains-kg-core@0.9.14
+    - py-ebrains-kg-core@0.9.15
     - py-efel@4.0.4
     - py-elephant@0.13.0
     - py-fairgraph@0.11.1