diff --git a/CMakeLists.txt b/CMakeLists.txt
index 1059ddb8779..05fac0673d3 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -8,7 +8,7 @@ set(CMAKE_POLICY_DEFAULT_CMP0069 NEW)
 # Fluent Bit Version
 set(FLB_VERSION_MAJOR  4)
 set(FLB_VERSION_MINOR  2)
-set(FLB_VERSION_PATCH  0)
+set(FLB_VERSION_PATCH  1)
 set(FLB_VERSION_STR "${FLB_VERSION_MAJOR}.${FLB_VERSION_MINOR}.${FLB_VERSION_PATCH}")
 
 set(CMAKE_POSITION_INDEPENDENT_CODE ON)
diff --git a/dockerfiles/Dockerfile b/dockerfiles/Dockerfile
index 4e92da6a439..33a832888c9 100644
--- a/dockerfiles/Dockerfile
+++ b/dockerfiles/Dockerfile
@@ -13,7 +13,7 @@
 # docker buildx build --platform "linux/amd64,linux/arm64,linux/arm/v7,linux/s390x" -f ./dockerfiles/Dockerfile.multiarch --build-arg FLB_TARBALL=https://github.com/fluent/fluent-bit/archive/v1.8.11.tar.gz ./dockerfiles/
 
 # Set this to the current release version: it gets done so as part of the release.
-ARG RELEASE_VERSION=4.1.2
+ARG RELEASE_VERSION=4.2.1
 
 # For multi-arch builds - assumption is running on an AMD64 host
 FROM multiarch/qemu-user-static:x86_64-arm AS qemu-arm32
diff --git a/fluent-bit-4.2.0.bb b/fluent-bit-4.2.1.bb
similarity index 99%
rename from fluent-bit-4.2.0.bb
rename to fluent-bit-4.2.1.bb
index 60c6f5dc096..3b4384f8b02 100644
--- a/fluent-bit-4.2.0.bb
+++ b/fluent-bit-4.2.1.bb
@@ -16,7 +16,7 @@ LIC_FILES_CHKSUM = "file://LICENSE;md5=2ee41112a44fe7014dce33e26468ba93"
 SECTION = "net"
 
 PR = "r0"
-PV = "4.2.0"
+PV = "4.2.1"
 
 SRCREV = "v${PV}"
 SRC_URI = "git://github.com/fluent/fluent-bit.git;nobranch=1"
diff --git a/snap/snapcraft.yaml b/snap/snapcraft.yaml
index 87837ae78bf..d6ad06fa295 100644
--- a/snap/snapcraft.yaml
+++ b/snap/snapcraft.yaml
@@ -1,6 +1,6 @@
 name: fluent-bit
 base: core20
-version: '4.2.0'
+version: '4.2.1'
 summary: High performance logs and stream processor
 description: |
   Fluent Bit is a high performance log processor and stream processor for Linux.