diff --git a/global-requirements.txt b/global-requirements.txt
index 51d7c7eb4e..bf72e0c600 100644
--- a/global-requirements.txt
+++ b/global-requirements.txt
@@ -445,7 +445,6 @@ sphinxcontrib-nwdiag  # BSD
 sphinxcontrib-seqdiag  # BSD
 sphinxcontrib-pecanwsme  # Apache-2.0
 sphinx-feature-classification  # Apache-2.0
-sphinxmark  # Apache-2.0
 sphinxcontrib.datatemplates  # BSD License
 sphinxcontrib-programoutput  # BSD license
 sphinxcontrib-svg2pdfconverter  # BSD License
diff --git a/upper-constraints.txt b/upper-constraints.txt
index c948b124e0..3ad8ee7ffa 100644
--- a/upper-constraints.txt
+++ b/upper-constraints.txt
@@ -365,7 +365,6 @@ ceilometermiddleware===2.0.0
 python-nss===1.0.1
 testrepository===0.0.20
 sympy===1.6
-sphinxmark===0.2.0
 Logbook===1.5.3
 PyNaCl===1.4.0
 osc-lib===2.2.0