diff --git a/requirements.txt b/requirements.txt
index 30560a5..63c964e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,21 +5,45 @@
 #    pip-compile requirements.in
 #
 argparse==1.4.0
-asn1crypto==0.24.0        # via cryptography
+    # via -r requirements.in
+asn1crypto==0.24.0
+    # via cryptography
 cachecontrol==0.12.5
-certifi==2019.6.16        # via requests
-cffi==1.12.3              # via cryptography
-chardet==3.0.4            # via requests
-cryptography==2.7         # via pyopenssl
+    # via -r requirements.in
+certifi==2019.6.16
+    # via requests
+cffi==1.12.3
+    # via cryptography
+chardet==3.0.4
+    # via requests
+cryptography==2.7
+    # via pyopenssl
 feedparser==5.2.1
+    # via -r requirements.in
 html5lib==1.0.1
+    # via -r requirements.in
 httplib2==0.13.0
-idna==2.8                 # via requests
+    # via -r requirements.in
+idna==2.8
+    # via requests
 lockfile==0.12.2
-msgpack==0.6.1            # via cachecontrol
-pycparser==2.19           # via cffi
+    # via -r requirements.in
+msgpack==0.6.1
+    # via cachecontrol
+pycparser==2.19
+    # via cffi
 pyopenssl==19.0.0
+    # via -r requirements.in
 requests==2.22.0
-six==1.12.0               # via cryptography, html5lib, pyopenssl
-urllib3==1.25.3           # via requests
-webencodings==0.5.1       # via html5lib
+    # via
+    #   -r requirements.in
+    #   cachecontrol
+six==1.12.0
+    # via
+    #   cryptography
+    #   html5lib
+    #   pyopenssl
+urllib3==1.25.8
+    # via requests
+webencodings==0.5.1
+    # via html5lib