diff --git a/docs/conf.py b/docs/conf.py
index b28cae2bc..d0f696000 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -56,7 +56,7 @@
 # The short X.Y version.
 version = '1.6'
 # The full version, including alpha/beta/rc tags.
-release = '1.6.6'
+release = '1.6.x'
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.
diff --git a/docs/requirements.txt b/docs/requirements.txt
index c44324093..6a8b7cfbe 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,8 +1,29 @@
-mock==1.0.1
-alabaster>=0.7,<0.8,!=0.7.5
+alabaster==0.7.16
+Babel==2.14.0
+certifi==2024.2.2
+charset-normalizer==3.3.2
 commonmark==0.9.1
-recommonmark==0.5.0
-sphinx<2
-sphinx-rtd-theme<0.5
-readthedocs-sphinx-ext<2.3
-jinja2<3.1.0
+docutils==0.20.1
+idna==3.6
+imagesize==1.4.1
+Jinja2==3.1.3
+MarkupSafe==2.1.5
+mock==5.1.0
+packaging==23.2
+Pygments==2.17.2
+readthedocs-sphinx-ext==2.2.5
+recommonmark==0.7.1
+requests==2.31.0
+setuptools==69.0.3
+snowballstemmer==2.2.0
+Sphinx==7.2.6
+sphinx-rtd-theme==2.0.0
+sphinxcontrib-applehelp==1.0.8
+sphinxcontrib-devhelp==1.0.6
+sphinxcontrib-htmlhelp==2.0.5
+sphinxcontrib-jquery==4.1
+sphinxcontrib-jsmath==1.0.1
+sphinxcontrib-qthelp==1.0.7
+sphinxcontrib-serializinghtml==1.1.10
+urllib3==2.2.1
+wheel==0.42.0