Upgrade dependencies.

requirements/dev.txt

@@ -38,11 +38,11 @@ filelock==3.0.12
     # via
     #   tox
     #   virtualenv
-hypothesis==6.8.0
+hypothesis==6.8.1
     # via -r tests.in
 icdiff==1.9.1
     # via pytest-icdiff
-identify==2.1.2
+identify==2.2.0
     # via pre-commit
 idna==2.10
     # via requests
@@ -63,8 +63,10 @@ packaging==20.9
     #   sphinx
     #   tox
 pep517==0.10.0
-    # via build
-pip-tools==5.5.0
+    # via
+    #   build
+    #   pip-tools
+pip-tools==6.0.1
     # via -r dev.in
 pluggy==0.13.1
     # via
@@ -116,7 +118,7 @@ sortedcontainers==2.3.0
     #   -r tests.in
     #   hypothesis
     #   sortedcollections
-sphinx==3.5.2
+sphinx==3.5.3
     # via -r docs.in
 sphinxcontrib-applehelp==1.0.2
     # via sphinx
@@ -134,14 +136,15 @@ toml==0.10.2
     # via
     #   build
     #   check-manifest
+    #   pep517
     #   pre-commit
     #   pytest
     #   tox
 tox==3.23.0
     # via -r dev.in
-urllib3==1.26.3
+urllib3==1.26.4
     # via requests
-virtualenv==20.4.2
+virtualenv==20.4.3
     # via
     #   pre-commit
     #   tox

requirements/docs.txt

@@ -34,7 +34,7 @@ requests==2.25.1
     # via sphinx
 snowballstemmer==2.1.0
     # via sphinx
-sphinx==3.5.2
+sphinx==3.5.3
     # via -r docs.in
 sphinxcontrib-applehelp==1.0.2
     # via sphinx
@@ -48,7 +48,7 @@ sphinxcontrib-qthelp==1.0.3
     # via sphinx
 sphinxcontrib-serializinghtml==1.1.4
     # via sphinx
-urllib3==1.26.3
+urllib3==1.26.4
     # via requests
 
 # The following packages are considered to be unsafe in a requirements file:

requirements/tests.txt

@@ -22,7 +22,7 @@ coverage==5.5
     #   pytest-cov
 docutils==0.16
     # via sphinx
-hypothesis==6.8.0
+hypothesis==6.8.1
     # via -r tests.in
 icdiff==1.9.1
     # via pytest-icdiff
@@ -79,7 +79,7 @@ sortedcontainers==2.3.0
     #   -r tests.in
     #   hypothesis
     #   sortedcollections
-sphinx==3.5.2
+sphinx==3.5.3
     # via -r docs.in
 sphinxcontrib-applehelp==1.0.2
     # via sphinx
@@ -95,7 +95,7 @@ sphinxcontrib-serializinghtml==1.1.4
     # via sphinx
 toml==0.10.2
     # via pytest
-urllib3==1.26.3
+urllib3==1.26.4
     # via requests
 
 # The following packages are considered to be unsafe in a requirements file: