diff --git a/CHANGELOG.md b/CHANGELOG.md
index 89b04ea..280324d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Changelog
 
+### 2.1.2 (2021-10-08)
+
+- Upgraded dependencies
+   - `pyyaml` to 5.4.1 also changed fixed version to minimum version
+     constraint.
+
 ### 2.1.1 (2020-07-14)
 
 - Upgraded dependencies
diff --git a/requirements.txt b/requirements.txt
index 1a142bf..d8fa33b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,4 +2,4 @@ psycopg2==2.8.5
 prometheus_client==0.8.0
 python-json-logger==0.1.11
 pycodestyle
-PyYAML==5.3.1
+PyYAML>=5.4.1
diff --git a/setup.py b/setup.py
index ab633de..55ca94d 100644
--- a/setup.py
+++ b/setup.py
@@ -11,7 +11,7 @@
 setup(
   name                          = 'prometheus-pgbouncer-exporter',
   packages                      = ['prometheus_pgbouncer_exporter'],
-  version                       = '2.1.1',
+  version                       = '2.1.2',
   description                   = 'Prometheus exporter for PgBouncer',
   long_description              = long_description,
   long_description_content_type = "text/markdown",
@@ -22,7 +22,7 @@
   keywords                      = ['prometheus', 'pgbouncer'],
   classifiers                   = [],
   python_requires               = ' >= 3',
-  install_requires              = ['psycopg2 == 2.8.5', 'prometheus_client==0.8.0', 'python-json-logger==0.1.11', 'PyYAML==5.3.1'],
+  install_requires              = ['psycopg2 == 2.8.5', 'prometheus_client==0.8.0', 'python-json-logger==0.1.11', 'PyYAML>=5.4.1'],
   entry_points                  = {
     'console_scripts': [
         'pgbouncer-exporter=prometheus_pgbouncer_exporter.cli:main',