diff --git a/CMakeLists.txt b/CMakeLists.txt
index 842c4d0..d7fc25c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -350,7 +350,7 @@ if (GIT_EXECUTABLE)
 else()
   set(GIT_SHA "GIT-hash-notfound")
 endif()
-set(APPROXMC_FULL_VERSION "4.1.20")
+set(APPROXMC_FULL_VERSION "4.1.21")
 
 string(REPLACE "." ";" APPROXMC_FULL_VERSION_LIST ${APPROXMC_FULL_VERSION})
 SetVersionNumber("PROJECT" ${APPROXMC_FULL_VERSION_LIST})
diff --git a/pyproject.toml b/pyproject.toml
index f268f02..5d5715c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "pyapproxmc"
-version = "4.1.20"
+version = "4.1.21"
 description = "Bindings to ApproxMC, an approximate model counter"
 keywords = ["sat", "model-counting"]
 license = { file = "LICENSE" }