diff --git a/.pre-commit-hooks.yaml b/.pre-commit-hooks.yaml
index 69f7bff479..66dd882140 100644
--- a/.pre-commit-hooks.yaml
+++ b/.pre-commit-hooks.yaml
@@ -21,4 +21,4 @@
     # free to override `additional_dependencies` in your own hook config
     # file as we only support latest stable version of ansible-core when used
     # as an action.
-    - ansible-core>=2.19.0
+    - ansible-core>=2.19.0,<2.20.0
diff --git a/pyproject.toml b/pyproject.toml
index eabe15e5af..858efc98e8 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -33,7 +33,7 @@ classifiers = [
 ]
 dependencies = [
   "ansible-compat>=25.8.2",
-  "ansible-core>=2.17.10",
+  "ansible-core>=2.17.10,<2.20.0",
   "black>=24.3.0",
   "cffi>=1.17.1",  # indirect dependency of ruamel-yaml
   "cryptography>=38",
diff --git a/uv.lock b/uv.lock
index 175db9e131..57421364fb 100644
--- a/uv.lock
+++ b/uv.lock
@@ -164,7 +164,7 @@ schemas = [
 [package.metadata]
 requires-dist = [
     { name = "ansible-compat", specifier = ">=25.8.2" },
-    { name = "ansible-core", specifier = ">=2.17.10" },
+    { name = "ansible-core", specifier = ">=2.17.10,<2.20.0" },
     { name = "black", specifier = ">=24.3.0" },
     { name = "cffi", specifier = ">=1.17.1" },
     { name = "cryptography", specifier = ">=38" },