diff --git a/requirements-dev.txt b/requirements-dev.txt
index 224789f6..d369cef4 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -5,28 +5,28 @@
 #    pip-compile --no-index --output-file=requirements-dev.txt requirements-dev.in
 #
 aspy.yaml==1.3.0          # via pre-commit
-bleach==3.1.1             # via readme-renderer
+bleach==3.1.2             # via readme-renderer
 certifi==2019.11.28       # via requests
 cffi==1.14.0              # via cryptography
 cfgv==2.0.1               # via pre-commit
 chardet==3.0.4            # via requests
 cryptography==2.8         # via secretstorage
 docutils==0.15.2          # via readme-renderer
-flake8==3.5.0
+flake8==3.5.0             # via -r requirements-dev.in
 identify==1.4.9           # via pre-commit
 idna==2.8                 # via requests
-invoke==1.3.0
+invoke==1.3.0             # via -r requirements-dev.in
 jeepney==0.4.2            # via secretstorage
 keyring==21.0.0           # via twine
 mccabe==0.6.1             # via flake8
-nodeenv==1.3.3
+nodeenv==1.3.3            # via -r requirements-dev.in, pre-commit
 pkginfo==1.5.0.1          # via twine
-pre-commit==1.21.0
+pre-commit==1.21.0        # via -r requirements-dev.in
 pycodestyle==2.3.1        # via flake8
 pycparser==2.19           # via cffi
 pyflakes==1.6.0           # via flake8
 pygments==2.5.2           # via readme-renderer
-pyyaml==5.2
+pyyaml==5.2               # via -r requirements-dev.in, aspy.yaml, pre-commit
 readme-renderer==24.0     # via twine
 requests-toolbelt==0.9.1  # via twine
 requests==2.22.0          # via requests-toolbelt, twine
@@ -34,7 +34,7 @@ secretstorage==3.1.2      # via keyring
 six==1.13.0               # via bleach, cfgv, cryptography, pre-commit, readme-renderer
 toml==0.10.0              # via pre-commit
 tqdm==4.41.1              # via twine
-twine==3.1.1
+twine==3.1.1              # via -r requirements-dev.in
 urllib3==1.25.7           # via requests
 virtualenv==16.7.9        # via pre-commit
 webencodings==0.5.1       # via bleach