Cherry-pick #9902 to 6.x: Upgrade PyYAML (#9908)

Cherry-pick of PR #9902 to 6.x branch. Original message: Addresses https://nvd.nist.gov/vuln/detail/CVE-2017-18342.
elastic · Jan 6, 2019 · a6fd877 · a6fd877
1 parent 0536bf8
commit a6fd877
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/libbeat/tests/system/requirements.txt b/libbeat/tests/system/requirements.txt
@@ -19,7 +19,7 @@ MarkupSafe==1.0
 nose==1.3.7
 nose-timer==0.7.1
 pycodestyle==2.4.0
-PyYAML==3.12
+PyYAML==4.2b1
 redis==2.10.6
 requests==2.20.0
 six==1.11.0