diff --git a/bsb_yaml/__init__.py b/bsb_yaml/__init__.py
index 54441ec..fb97788 100644
--- a/bsb_yaml/__init__.py
+++ b/bsb_yaml/__init__.py
@@ -4,4 +4,4 @@
 
 from .components import YamlDependencyNode
 
-__version__ = "4.0.0-rc2"
+__version__ = "4.0.0"
diff --git a/pyproject.toml b/pyproject.toml
index 0bdd9ae..e3ca62e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -9,7 +9,7 @@ readme = "README.md"
 license = {file = "LICENSE"}
 classifiers = ["License :: OSI Approved :: GNU General Public License v3 or later (GPLv3+)"]
 dynamic = ["version", "description"]
-dependencies = ["bsb-core==4.0.0rc2", "PyYAML~=6.0"]
+dependencies = ["bsb-core~=4.0", "PyYAML~=6.0"]
 
 [project.entry-points."bsb.config.parsers"]
 yaml = "bsb_yaml.parser"
@@ -21,10 +21,10 @@ yaml_templates = "bsb_yaml.templates"
 name = "bsb_yaml"
 
 [project.optional-dependencies]
-test = ["bsb-core[parallel]", "bsb-test==4.0.0rc2", "coverage~=7.0"]
+test = ["bsb-core[parallel]", "bsb-test~=4.0", "coverage~=7.0"]
 dev = [
     "pre-commit~=3.5",
-    "black~=23.11",
+    "black~=24.0",
     "isort~=5.12",
     "bump-my-version~=0.18"
 ]
@@ -33,7 +33,7 @@ dev = [
 profile = "black"
 
 [tool.bumpversion]
-current_version = "4.0.0-rc2"
+current_version = "4.0.0"
 parse = """(?x)
     (?P<major>0|[1-9]\\d*)\\.
     (?P<minor>0|[1-9]\\d*)\\.