diff --git a/setup.py b/setup.py
index c97955554..3e7b46fcb 100644
--- a/setup.py
+++ b/setup.py
@@ -55,7 +55,7 @@
         (BASE_DIR, ['data/nssm_original.exe'])
     )],
 
-    install_requires=['indicio-indy-plenum==1.13.2-rc19',
+    install_requires=['indicio-indy-plenum==1.13.2-rc20',
                     # importlib-metadata needs to be pinned to 3.10.1 because from v4.0.0 the package
                     # name ends in python3-importlib-metadata_0.0.0_amd64.deb
                     # see also build-scripts/ubuntu-2004/build-3rd-parties.sh