diff --git a/src/exec/Cargo.lock b/src/exec/Cargo.lock
index 08055ac6..61851655 100644
--- a/src/exec/Cargo.lock
+++ b/src/exec/Cargo.lock
@@ -419,7 +419,7 @@ dependencies = [
 
 [[package]]
 name = "occlum_exec"
-version = "0.23.3"
+version = "0.23.4"
 dependencies = [
  "chrono 0.4.11 (registry+https://github.com/rust-lang/crates.io-index)",
  "clap 2.33.0 (registry+https://github.com/rust-lang/crates.io-index)",
diff --git a/src/exec/Cargo.toml b/src/exec/Cargo.toml
index 479ca844..5257e26c 100644
--- a/src/exec/Cargo.toml
+++ b/src/exec/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "occlum_exec"
-version = "0.23.3"
+version = "0.23.4"
 edition = "2018"
 
 [lib]
diff --git a/src/libos/Cargo.lock b/src/libos/Cargo.lock
index 1534681d..fe3b89cb 100644
--- a/src/libos/Cargo.lock
+++ b/src/libos/Cargo.lock
@@ -2,7 +2,7 @@
 # It is not intended for manual editing.
 [[package]]
 name = "Occlum"
-version = "0.23.3"
+version = "0.23.4"
 dependencies = [
  "aligned",
  "atomic",
@@ -411,6 +411,7 @@ dependencies = [
 name = "rcore-fs"
 version = "0.1.0"
 dependencies = [
+ "bitflags",
  "spin",
 ]
 
diff --git a/src/libos/Cargo.toml b/src/libos/Cargo.toml
index 6797cad3..c208826b 100644
--- a/src/libos/Cargo.toml
+++ b/src/libos/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "Occlum"
-version = "0.23.3"
+version = "0.23.4"
 edition = "2018"
 
 [lib]
diff --git a/src/pal/include/occlum_version.h b/src/pal/include/occlum_version.h
index 84dc89e5..93ff5333 100644
--- a/src/pal/include/occlum_version.h
+++ b/src/pal/include/occlum_version.h
@@ -3,10 +3,10 @@
 #ifndef _OCCLUM_VERSION_H_
 #define _OCCLUM_VERSION_H_
 
-// Version = 0.23.3
+// Version = 0.23.4
 #define OCCLUM_MAJOR_VERSION    0
 #define OCCLUM_MINOR_VERSION    23
-#define OCCLUM_PATCH_VERSION    3
+#define OCCLUM_PATCH_VERSION    4
 
 #define STRINGIZE_PRE(X) #X
 #define STRINGIZE(X) STRINGIZE_PRE(X)