diff --git a/pkgs/development/python-modules/mypy-boto3/default.nix b/pkgs/development/python-modules/mypy-boto3/default.nix
index 18678c217080..b39463846a76 100644
--- a/pkgs/development/python-modules/mypy-boto3/default.nix
+++ b/pkgs/development/python-modules/mypy-boto3/default.nix
@@ -1129,8 +1129,8 @@ in
       "sha256-jYAsZ1lMU9cl4rIvRO1UZLn4nIsuauWrNRwyB0j4HK0=";
 
   mypy-boto3-rolesanywhere =
-    buildMypyBoto3Package "rolesanywhere" "1.41.0"
-      "sha256-wcYk7NsqlkHelo0ai/ZdsRz+HVANcf+kWYFbnGpOdzE=";
+    buildMypyBoto3Package "rolesanywhere" "1.42.3"
+      "sha256-BzohFxZYhyKFmy8wIG6zdGsuPMh9Nr0GrY//d5q/Or4=";
 
   mypy-boto3-route53 =
     buildMypyBoto3Package "route53" "1.41.4"