diff --git a/pyproject.toml b/pyproject.toml
index c135097..2037f82 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -33,7 +33,7 @@ classifiers = [
 ]
 dependencies = [
   "requests",
-  "singer-sdk~=0.39.0",
+  "singer-sdk~=0.40.0",
 ]
 optional-dependencies.dev = [
   "tap-canny[testing,typing]",