diff --git a/libs/experimental/poetry.toml b/libs/experimental/poetry.toml
index 42159b2479..ab1033bd37 100644
--- a/libs/experimental/poetry.toml
+++ b/libs/experimental/poetry.toml
@@ -1,5 +1,2 @@
 [virtualenvs]
 in-project = true
-
-[installer]
-modern-installation = false
diff --git a/libs/langchain/poetry.toml b/libs/langchain/poetry.toml
index 42159b2479..ab1033bd37 100644
--- a/libs/langchain/poetry.toml
+++ b/libs/langchain/poetry.toml
@@ -1,5 +1,2 @@
 [virtualenvs]
 in-project = true
-
-[installer]
-modern-installation = false
diff --git a/poetry.toml b/poetry.toml
index 42159b2479..ab1033bd37 100644
--- a/poetry.toml
+++ b/poetry.toml
@@ -1,5 +1,2 @@
 [virtualenvs]
 in-project = true
-
-[installer]
-modern-installation = false