diff --git a/src/azure-cli/requirements.py3.Darwin.txt b/src/azure-cli/requirements.py3.Darwin.txt
index 35b67c4483d..adef12752cf 100644
--- a/src/azure-cli/requirements.py3.Darwin.txt
+++ b/src/azure-cli/requirements.py3.Darwin.txt
@@ -106,7 +106,7 @@ jsmin==2.2.2
 knack==0.8.0rc2
 MarkupSafe==1.1.1
 mock==4.0.2
-msrest==0.6.18
+msrest==0.6.21
 msrestazure==0.6.3
 oauthlib==3.0.1
 paramiko==2.6.0
diff --git a/src/azure-cli/requirements.py3.Linux.txt b/src/azure-cli/requirements.py3.Linux.txt
index 35b67c4483d..adef12752cf 100644
--- a/src/azure-cli/requirements.py3.Linux.txt
+++ b/src/azure-cli/requirements.py3.Linux.txt
@@ -106,7 +106,7 @@ jsmin==2.2.2
 knack==0.8.0rc2
 MarkupSafe==1.1.1
 mock==4.0.2
-msrest==0.6.18
+msrest==0.6.21
 msrestazure==0.6.3
 oauthlib==3.0.1
 paramiko==2.6.0
diff --git a/src/azure-cli/requirements.py3.windows.txt b/src/azure-cli/requirements.py3.windows.txt
index 8729c896cd0..9ff73bae202 100644
--- a/src/azure-cli/requirements.py3.windows.txt
+++ b/src/azure-cli/requirements.py3.windows.txt
@@ -105,7 +105,7 @@ jsmin==2.2.2
 knack==0.8.0rc2
 MarkupSafe==1.1.1
 mock==4.0.2
-msrest==0.6.18
+msrest==0.6.21
 msrestazure==0.6.3
 oauthlib==3.0.1
 paramiko==2.6.0