diff --git a/requirements/base.txt b/requirements/base.txt
index 8910629..597cda6 100644
--- a/requirements/base.txt
+++ b/requirements/base.txt
@@ -10,6 +10,6 @@ click==7.0
 jinja2==2.10.1
 markupsafe==1.1.1         # via jinja2
 prompt-toolkit==2.0.9     # via click-repl
-pyyaml==5.1
+pyyaml==5.1.2
 six==1.12.0               # via click-repl, prompt-toolkit
 wcwidth==0.1.7            # via prompt-toolkit
diff --git a/requirements/dev.txt b/requirements/dev.txt
index 8a9eb11..ca58266 100644
--- a/requirements/dev.txt
+++ b/requirements/dev.txt
@@ -30,7 +30,7 @@ prompt-toolkit==2.0.9
 pygments==2.4.2           # via readme-renderer
 pyinstaller==3.4
 pylint==2.3.1
-pyyaml==5.1
+pyyaml==5.1.2
 readme-renderer==24.0     # via twine
 requests-toolbelt==0.9.1  # via twine
 requests==2.22.0          # via requests-toolbelt, twine
diff --git a/requirements/docs.txt b/requirements/docs.txt
index e96837a..d3ecdb0 100644
--- a/requirements/docs.txt
+++ b/requirements/docs.txt
@@ -21,7 +21,7 @@ prompt-toolkit==2.0.9
 pygments==2.3.1           # via sphinx
 pyparsing==2.4.0          # via packaging
 pytz==2019.1              # via babel
-pyyaml==5.1
+pyyaml==5.1.2
 requests==2.21.0          # via sphinx
 six==1.12.0
 snowballstemmer==1.2.1    # via sphinx