diff --git a/requirements/common_constraints.txt b/requirements/common_constraints.txt
index 78578a41d8d8..13f8f7538b24 100644
--- a/requirements/common_constraints.txt
+++ b/requirements/common_constraints.txt
@@ -29,8 +29,3 @@ django-simple-history==3.0.0
 # tox>4.0.0 isn't yet compatible with many tox plugins, causing CI failures in almost all repos.
 # Details can be found in this discussion: https://github.com/tox-dev/tox/discussions/1810
 tox<4.0.0
-
-# edx-sphinx-theme is not compatible with latest Sphinx==6.0.0 version 
-# Pinning Sphinx version unless the compatibility issue gets resolved
-# For details, see issue https://github.com/openedx/edx-sphinx-theme/issues/197
-sphinx<6.0.0
diff --git a/requirements/edx-sandbox/py38.txt b/requirements/edx-sandbox/py38.txt
index 529da1dfffd2..573f91a671e2 100644
--- a/requirements/edx-sandbox/py38.txt
+++ b/requirements/edx-sandbox/py38.txt
@@ -14,12 +14,18 @@ click==8.1.3
     #   nltk
 codejail-includes==1.0.0
     # via -r requirements/edx-sandbox/py38.in
+contourpy==1.1.0
+    # via matplotlib
 cryptography==38.0.4
     # via
     #   -c requirements/edx-sandbox/../constraints.txt
     #   -r requirements/edx-sandbox/py38.in
 cycler==0.11.0
     # via matplotlib
+fonttools==4.40.0
+    # via matplotlib
+importlib-resources==6.0.0
+    # via matplotlib
 joblib==1.2.0
     # via nltk
 kiwisolver==1.4.4
@@ -32,10 +38,8 @@ markupsafe==2.1.3
     # via
     #   chem
     #   openedx-calc
-matplotlib==3.3.4
-    # via
-    #   -c requirements/edx-sandbox/../constraints.txt
-    #   -r requirements/edx-sandbox/py38.in
+matplotlib==3.7.2
+    # via -r requirements/edx-sandbox/py38.in
 mpmath==1.3.0
     # via sympy
 networkx==3.1
@@ -47,16 +51,19 @@ nltk==3.8.1
 numpy==1.22.4
     # via
     #   chem
+    #   contourpy
     #   matplotlib
     #   openedx-calc
     #   scipy
 openedx-calc==3.0.1
     # via -r requirements/edx-sandbox/py38.in
+packaging==23.1
+    # via matplotlib
 pillow==9.5.0
     # via matplotlib
 pycparser==2.21
     # via cffi
-pyparsing==3.1.0
+pyparsing==3.0.9
     # via
     #   -r requirements/edx-sandbox/py38.in
     #   chem
@@ -85,3 +92,5 @@ sympy==1.12
     #   openedx-calc
 tqdm==4.65.0
     # via nltk
+zipp==3.16.0
+    # via importlib-resources
diff --git a/requirements/edx/development.txt b/requirements/edx/development.txt
index e9091045c9e2..6723cd75271d 100644
--- a/requirements/edx/development.txt
+++ b/requirements/edx/development.txt
@@ -1540,7 +1540,6 @@ soupsieve==2.4.1
     #   beautifulsoup4
 sphinx==5.3.0
     # via
-    #   -c requirements/edx/../common_constraints.txt
     #   edx-sphinx-theme
     #   sphinxcontrib-httpdomain
     #   sphinxcontrib-openapi
diff --git a/requirements/edx/doc.txt b/requirements/edx/doc.txt
index 44fa71ecb570..68a1b5b85285 100644
--- a/requirements/edx/doc.txt
+++ b/requirements/edx/doc.txt
@@ -79,7 +79,6 @@ soupsieve==2.4.1
     # via beautifulsoup4
 sphinx==5.3.0
     # via
-    #   -c requirements/edx/../common_constraints.txt
     #   -r requirements/edx/doc.in
     #   pydata-sphinx-theme
     #   sphinx-book-theme