diff --git a/pyproject.toml b/pyproject.toml
index ca6471f1..7daa2dea 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -27,7 +27,7 @@ classifiers = [
 requires-python = ">=3.9"
 dependencies = [
     "antsibull-changelog >= 0.24.0",
-    "antsibull-core >= 2.0.0, <= 3.0.0a1",
+    "antsibull-core >= 2.0.0, <= 3.0.0a1.post0",
     "asyncio-pool",
     "build",
     "jinja2",