From 2e0022cb1d61feb5d56bae0a571cb0509c4aa1a4 Mon Sep 17 00:00:00 2001
From: Bert Blommers <bblommers@users.noreply.github.com>
Date: Wed, 24 Aug 2022 21:17:35 +0000
Subject: [PATCH] IAM: Allow STS:TagSession as policy action (#5419)

---
 moto/iam/policy_validation.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/moto/iam/policy_validation.py b/moto/iam/policy_validation.py
index c77069e70..8af17a7d2 100644
--- a/moto/iam/policy_validation.py
+++ b/moto/iam/policy_validation.py
@@ -568,4 +568,5 @@ class IAMTrustPolicyDocumentValidator(BaseIAMPolicyValidator):
             "sts:AssumeRole",
             "sts:AssumeRoleWithSAML",
             "sts:AssumeRoleWithWebIdentity",
+            "sts:TagSession",
         )