diff --git a/src/exec/Cargo.lock b/src/exec/Cargo.lock
index 5e1fcce0..5d599405 100644
--- a/src/exec/Cargo.lock
+++ b/src/exec/Cargo.lock
@@ -419,7 +419,7 @@ dependencies = [
 
 [[package]]
 name = "occlum_exec"
-version = "0.26.3"
+version = "0.26.4"
 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 adc4feb4..a1e52cc0 100644
--- a/src/exec/Cargo.toml
+++ b/src/exec/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "occlum_exec"
-version = "0.26.3"
+version = "0.26.4"
 edition = "2018"
 
 [lib]
diff --git a/src/libos/Cargo.lock b/src/libos/Cargo.lock
index 2c9ade60..d0de73eb 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 = "0.26.3"
+version = "0.26.4"
 dependencies = [
  "aligned",
  "atomic",
diff --git a/src/libos/Cargo.toml b/src/libos/Cargo.toml
index 4b7f318b..dfd17253 100644
--- a/src/libos/Cargo.toml
+++ b/src/libos/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "Occlum"
-version = "0.26.3"
+version = "0.26.4"
 edition = "2018"
 
 [lib]
diff --git a/src/pal/include/occlum_version.h b/src/pal/include/occlum_version.h
index de8041d1..7965e01c 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 = 0.26.3
+// Version = 0.26.4
 #define OCCLUM_MAJOR_VERSION    0
 #define OCCLUM_MINOR_VERSION    26
-#define OCCLUM_PATCH_VERSION    3
+#define OCCLUM_PATCH_VERSION    4
 
 #define STRINGIZE_PRE(X) #X
 #define STRINGIZE(X) STRINGIZE_PRE(X)