diff --git a/requirements/edx/base.txt b/requirements/edx/base.txt
index bd1b38ce1e..df5743e36c 100644
--- a/requirements/edx/base.txt
+++ b/requirements/edx/base.txt
@@ -186,7 +186,7 @@ py2neo==3.1.2
 pycontracts==1.7.1
 pycountry==19.8.18
 pycparser==2.19
-pycryptodome==3.9.3       # via pdfminer.six
+pycryptodome==3.9.4       # via pdfminer.six
 pycryptodomex==3.4.7
 pygments==2.4.2
 pygraphviz==1.5
diff --git a/requirements/edx/development.txt b/requirements/edx/development.txt
index 7416f9b253..a87c0da64b 100644
--- a/requirements/edx/development.txt
+++ b/requirements/edx/development.txt
@@ -243,7 +243,7 @@ pycodestyle==2.5.0
 pycontracts==1.7.1
 pycountry==19.8.18
 pycparser==2.19
-pycryptodome==3.9.3
+pycryptodome==3.9.4
 pycryptodomex==3.4.7
 pyflakes==2.1.1
 pygments==2.4.2
diff --git a/requirements/edx/testing.txt b/requirements/edx/testing.txt
index 2e405a0292..1caab6821b 100644
--- a/requirements/edx/testing.txt
+++ b/requirements/edx/testing.txt
@@ -233,7 +233,7 @@ pycodestyle==2.5.0
 pycontracts==1.7.1
 pycountry==19.8.18
 pycparser==2.19
-pycryptodome==3.9.3
+pycryptodome==3.9.4
 pycryptodomex==3.4.7
 pyflakes==2.1.1           # via flake8
 pygments==2.4.2