diff --git a/requirements.txt b/requirements.txt
index ca85253..046be4a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 boto3>=1.34,<2.0
 cryptography>=43.0.0,<44.0
-pulumi>=3.130.0,<4.0.0
+pulumi==3.145.0
 pulumi-aws==6.65.0
 pulumi-random>=4.16,<5.0
 # pyyaml is also a requirement, but is installed for us by pulumi