diff --git a/requirements-docs.txt b/requirements-docs.txt
index 73bb02778f..313d131f99 100644
--- a/requirements-docs.txt
+++ b/requirements-docs.txt
@@ -4,32 +4,63 @@
 #
 #    pip-compile --no-index --output-file=requirements-docs.txt requirements-docs.in
 #
-alabaster==0.7.12         # via sphinx
-babel==2.8.0              # via sphinx
-certifi==2020.12.5        # via requests
-chardet==3.0.4            # via requests
-docutils==0.15.2          # via sphinx
-idna==2.9                 # via requests
-imagesize==1.2.0          # via sphinx
-jinja2==2.11.2            # via sphinx
-markupsafe==1.1.1         # via jinja2
-packaging==20.3           # via sphinx
-pygments==2.6.1           # via sphinx
-pyparsing==2.4.7          # via packaging
-pytz==2019.3              # via babel
-requests==2.25.1          # via sphinx
-six==1.15.0               # via packaging, sphinxcontrib-httpdomain
-snowballstemmer==2.0.0    # via sphinx
-sphinx-rtd-theme==0.5.0   # via -r requirements-docs.in
-sphinx==3.4.2             # via -r requirements-docs.in, sphinx-rtd-theme, sphinxcontrib-httpdomain
-sphinxcontrib-applehelp==1.0.2  # via sphinx
-sphinxcontrib-devhelp==1.0.2  # via sphinx
-sphinxcontrib-htmlhelp==1.0.3  # via sphinx
-sphinxcontrib-httpdomain==1.7.0  # via -r requirements-docs.in
-sphinxcontrib-jsmath==1.0.1  # via sphinx
-sphinxcontrib-qthelp==1.0.3  # via sphinx
-sphinxcontrib-serializinghtml==1.1.4  # via sphinx
-urllib3==1.25.8           # via requests
+alabaster==0.7.12
+    # via sphinx
+babel==2.9.1
+    # via sphinx
+certifi==2020.12.5
+    # via requests
+chardet==3.0.4
+    # via requests
+docutils==0.15.2
+    # via sphinx
+idna==2.9
+    # via requests
+imagesize==1.2.0
+    # via sphinx
+jinja2==2.11.2
+    # via sphinx
+markupsafe==1.1.1
+    # via jinja2
+packaging==20.3
+    # via sphinx
+pygments==2.6.1
+    # via sphinx
+pyparsing==2.4.7
+    # via packaging
+pytz==2019.3
+    # via babel
+requests==2.25.1
+    # via sphinx
+six==1.15.0
+    # via
+    #   packaging
+    #   sphinxcontrib-httpdomain
+snowballstemmer==2.0.0
+    # via sphinx
+sphinx==3.4.2
+    # via
+    #   -r requirements-docs.in
+    #   sphinx-rtd-theme
+    #   sphinxcontrib-httpdomain
+sphinx-rtd-theme==0.5.0
+    # via -r requirements-docs.in
+sphinxcontrib-applehelp==1.0.2
+    # via sphinx
+sphinxcontrib-devhelp==1.0.2
+    # via sphinx
+sphinxcontrib-htmlhelp==1.0.3
+    # via sphinx
+sphinxcontrib-httpdomain==1.7.0
+    # via -r requirements-docs.in
+sphinxcontrib-jsmath==1.0.1
+    # via sphinx
+sphinxcontrib-qthelp==1.0.3
+    # via sphinx
+sphinxcontrib-serializinghtml==1.1.4
+    # via sphinx
+urllib3==1.25.8
+    # via requests
 
 # The following packages are considered to be unsafe in a requirements file:
 # setuptools