diff --git a/pkgs/development/python-modules/reportlab/default.nix b/pkgs/development/python-modules/reportlab/default.nix
index 818d702160fd..661d5a6ff574 100644
--- a/pkgs/development/python-modules/reportlab/default.nix
+++ b/pkgs/development/python-modules/reportlab/default.nix
@@ -17,7 +17,7 @@ let
 in
 buildPythonPackage rec {
   pname = "reportlab";
-  version = "4.5.1";
+  version = "5.0.0";
   pyproject = true;
 
   # See https://bitbucket.org/pypy/compatibility/wiki/reportlab%20toolkit
@@ -25,7 +25,7 @@ buildPythonPackage rec {
 
   src = fetchPypi {
     inherit pname version;
-    hash = "sha256-n99o9N6RcexmrLSl/u2PjKKvQ0eecHpvuw2qddiOVJQ=";
+    hash = "sha256-5ElKDGYjriE7uFb7pSMXGytUp79in9oC1eUlp7iZp4Q=";
   };
 
   postPatch = ''
diff --git a/pkgs/development/python-modules/rst2pdf/default.nix b/pkgs/development/python-modules/rst2pdf/default.nix
index d4b6007e5470..6a8683f7df5d 100644
--- a/pkgs/development/python-modules/rst2pdf/default.nix
+++ b/pkgs/development/python-modules/rst2pdf/default.nix
@@ -30,7 +30,10 @@ buildPythonPackage rec {
     hash = "sha256-hX6HQQFOxQFfegCq+13Mu1Y3jvTB2lWoKNRLz1/zrNs=";
   };
 
-  pythonRelaxDeps = [ "packaging" ];
+  pythonRelaxDeps = [
+    "packaging"
+    "reportlab"
+  ];
 
   outputs = [
     "out"
diff --git a/pkgs/development/python-modules/xhtml2pdf/default.nix b/pkgs/development/python-modules/xhtml2pdf/default.nix
index 9c67b7f598b8..0e878304b921 100644
--- a/pkgs/development/python-modules/xhtml2pdf/default.nix
+++ b/pkgs/development/python-modules/xhtml2pdf/default.nix
@@ -31,6 +31,10 @@ buildPythonPackage rec {
     setuptools
   ];
 
+  pythonRelaxDeps = [
+    "reportlab"
+  ];
+
   dependencies = [
     arabic-reshaper
     html5lib