diff --git a/CMakeLists.txt b/CMakeLists.txt
index bc2a47113508185ead6ce033b2bae1e6339a2272..1dd665c0179a07cbe951f8f2ef888dee4c59f5af 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -25,7 +25,7 @@ include(PROMOD3)
 # versioning info
 set(PROMOD3_VERSION_MAJOR 3)
 set(PROMOD3_VERSION_MINOR 1)
-set(PROMOD3_VERSION_PATCH 0)
+set(PROMOD3_VERSION_PATCH 1)
 set(PROMOD3_VERSION_STRING ${PROMOD3_VERSION_MAJOR}.${PROMOD3_VERSION_MINOR})
 set(PROMOD3_VERSION_STRING ${PROMOD3_VERSION_STRING}.${PROMOD3_VERSION_PATCH})
 
@@ -101,7 +101,7 @@ if(NOT DISABLE_DOCUMENTATION)
   # this URL should always point to the latest version of OST
   set(OST_DOC_URL "https://www.openstructure.org/docs")
 endif()
-find_package(OPENSTRUCTURE 2.0.0 REQUIRED
+find_package(OPENSTRUCTURE 2.1.0 REQUIRED
              COMPONENTS io mol seq seq_alg mol_alg conop img mol_mm)
 
 if(CMAKE_COMPILER_IS_GNUCXX)
diff --git a/container/Dockerfile b/container/Dockerfile
index d827698502c0128c7173519e4ef7987e22cefc17..669aacc73d445849b09c286219cfafb188aca244 100644
--- a/container/Dockerfile
+++ b/container/Dockerfile
@@ -1,9 +1,9 @@
-ARG OPENSTRUCTURE_IMAGE_TAG="2.0.0-bionic"
+ARG OPENSTRUCTURE_IMAGE_TAG="2.1.0-bionic"
 FROM registry.scicore.unibas.ch/schwede/openstructure:${OPENSTRUCTURE_IMAGE_TAG}
 
 # ARGUMENTS
 ###########
-ARG PROMOD_VERSION="3.1.0"
+ARG PROMOD_VERSION="3.1.1"
 ARG SRC_FOLDER="/usr/local/src"
 
 
diff --git a/container/Singularity b/container/Singularity
index f5665c8d6d89976cae2f70a8c95c6eafdc52596d..2b9f8f1fee08920e12d46138000dc05af4585b86 100644
--- a/container/Singularity
+++ b/container/Singularity
@@ -1,5 +1,5 @@
 BootStrap: docker
-From: registry.scicore.unibas.ch/schwede/promod3:3.1.0-OST2.0.0-bionic
+From: registry.scicore.unibas.ch/schwede/promod3:3.1.1-OST2.1.0-bionic
 %post
 ##############################################################################
 # POST
diff --git a/doc/conf.py.in b/doc/conf.py.in
index 8f97db296b46d1a2ca12e70f367b0552bdb81200..08c65e05183e857dd016281843395d512b1bc7f9 100644
--- a/doc/conf.py.in
+++ b/doc/conf.py.in
@@ -286,7 +286,7 @@ rst_epilog = """
 .. |cmake| replace:: CMake
 .. |ost_l| replace:: OpenStructure
 .. |ost_s| replace:: OST
-.. |ost_version| replace:: 2.0.0
+.. |ost_version| replace:: 2.1.0
 .. |python| replace:: Python
 .. |sphinx| replace:: Sphinx
 .. _sphinx: http://sphinx-doc.org/