diff --git a/Pipfile b/Pipfile
index d597a31..7e7b5d6 100644
--- a/Pipfile
+++ b/Pipfile
@@ -7,11 +7,11 @@ verify_ssl = true
 
 [packages]
 sphinx-php = {git = "https://github.com/fabpot/sphinx-php.git"}
-sphinx-rtd-theme = "==0.1.6"
-sphinxcontrib-spelling = "==4.2.0"
-pyenchant = "~=2.0"
-docutils = "==0.12"
-Sphinx = "~=1.4.0"
+sphinx-rtd-theme = "==1.0.0"
+sphinxcontrib-spelling = "==7.2.0"
+pyenchant = "~=3.2.1"
+docutils = "==0.17"
+Sphinx = "~=4.2.0"
 
 [requires]
 python_version = "3.7"