diff --git a/poetry.lock b/poetry.lock
index 62a3d4b01b0..49c84d8f5b0 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -1828,4 +1828,4 @@ testing = ["flake8 (<5)", "func-timeout", "jaraco.functools", "jaraco.itertools"
 [metadata]
 lock-version = "2.0"
 python-versions = "^3.7"
-content-hash = "67df799e05fb4afd82e52395a1f0d5caa51cc33232d4311e6b7a4c8991f946a9"
+content-hash = "c1c21f02e493ffbfd622bec8546c83edad08325b957851dd3f9a287867ce24a4"
diff --git a/pyproject.toml b/pyproject.toml
index 5bd4332266d..c05a4ed049a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -47,7 +47,7 @@ generate-setup-file = false
 [tool.poetry.dependencies]
 python = "^3.7"
 
-poetry-core = "^1.4.0"
+poetry-core = "1.4.0"
 poetry-plugin-export = "^1.2.0"
 "backports.cached-property" = { version = "^1.0.2", python = "<3.8" }
 cachecontrol = { version = "^0.12.9", extras = ["filecache"] }