diff --git a/README.md b/README.md
index 87733567..7768b63e 100644
--- a/README.md
+++ b/README.md
@@ -97,7 +97,7 @@ Please install the following dependencies:
  - pyscard
  - pyserial
  - pytlv
- - pyyaml >= 5.1
+ - pyyaml >= 5.4
  - smpp.pdu (from `github.com/hologram-io/smpp.pdu`)
  - termcolor
 
diff --git a/requirements.txt b/requirements.txt
index 4ceec452..9088f16f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@ jsonpath-ng
 construct>=2.10.70
 bidict
 pyosmocom>=0.0.12
-pyyaml>=5.1
+pyyaml>=5.4
 termcolor
 colorlog
 pycryptodomex
diff --git a/setup.py b/setup.py
index be811225..614d80ba 100644
--- a/setup.py
+++ b/setup.py
@@ -26,7 +26,7 @@ setup(
         "construct >= 2.10.70",
         "bidict",
         "pyosmocom >= 0.0.12",
-        "pyyaml >= 5.1",
+        "pyyaml >= 5.4",
         "termcolor",
         "colorlog",
         "pycryptodomex",