diff --git a/azure-cli-core.spec b/azure-cli-core.spec
index 2b76b06..740f133 100644
--- a/azure-cli-core.spec
+++ b/azure-cli-core.spec
@@ -42,7 +42,7 @@ Requires:       python3-pip
 Requires:       python3-pygments  
 Requires:       python3-PyJWT  
 Requires:       python3-pyopenssl >= 16.2
-Requires:       python3-pyyaml  
+Requires:       python3-PyYAML  
 Requires:       python3-requests  
 Requires:       python3-six  
 Requires:       python3-tabulate >= 0.7.7