diff --git a/constraints.txt b/constraints.txt
index e6b6df7b11..8ea0bbf227 100644
--- a/constraints.txt
+++ b/constraints.txt
@@ -20,7 +20,7 @@ Persistence==3.6
 Products.BTreeFolder2==4.4
 Products.ZCatalog==5.4
 Record==3.6
-RestrictedPython==5.2
+RestrictedPython==5.3
 WSGIProxy2==0.4.6; python_version == '2.7'
 WSGIProxy2==0.4.6; python_version == '3.5'
 WSGIProxy2==0.4.6; python_version == '3.6'
diff --git a/requirements-full.txt b/requirements-full.txt
index 80e7c23dc3..23d1dd776e 100644
--- a/requirements-full.txt
+++ b/requirements-full.txt
@@ -21,7 +21,7 @@ Persistence==3.6
 Products.BTreeFolder2==4.4
 Products.ZCatalog==5.4
 Record==3.6
-RestrictedPython==5.2
+RestrictedPython==5.3
 WSGIProxy2==0.4.6; python_version == '2.7'
 WSGIProxy2==0.4.6; python_version == '3.5'
 WSGIProxy2==0.4.6; python_version == '3.6'
diff --git a/versions-prod.cfg b/versions-prod.cfg
index 2be13264b6..e889dbff5a 100644
--- a/versions-prod.cfg
+++ b/versions-prod.cfg
@@ -23,7 +23,7 @@ Products.BTreeFolder2 = 4.4
 Products.ZCatalog = 5.4
 Record = 3.6
 # RestrictedPython >= 6 no longer supports Zope 4
-RestrictedPython = 5.2
+RestrictedPython = 5.3
 WSGIProxy2 = 0.5.1
 WebOb = 1.8.7
 WebTest = 3.0.0