diff --git a/requirements.txt b/requirements.txt
index 50faa10..07e15bb 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,8 +3,8 @@ pexpect==4.4.0
 python-telegram-bot==10.0.1
 telethon==0.18.1.1
 hangups==0.4.4
-PyYaml==3.12
+PyYaml==5.4
 python-dotenv==0.8.2
 hangups==0.4.4
-PyYaml==3.12
+PyYaml==5.4
 telethon==0.18.1.1
diff --git a/requirements_dev.txt b/requirements_dev.txt
index 25df3ab..1c52365 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -9,5 +9,5 @@ cryptography==2.2.1
 coverage==4.5.1
 Sphinx==1.7.2
 cryptography==2.2.1
-PyYAML==3.12
+PyYAML==5.4
 ptpython==0.41