diff --git a/sh_script/build.sh b/sh_script/build.sh
index c05aa3f0..2a2a5431 100755
--- a/sh_script/build.sh
+++ b/sh_script/build.sh
@@ -101,7 +101,7 @@ run_with_spdm_emu() {
     cleanup
     
     echo_command cargo run -p spdm-responder-emu --no-default-features --features="$RUN_RESPONDER_FEATURES" &
-    sleep 5
+    sleep 20
     pushd test_key
     chmod +x ./spdm_requester_emu
     echo_command  ./spdm_requester_emu --trans PCI_DOE --exe_conn DIGEST,CERT,CHAL,MEAS --exe_session KEY_EX,PSK,KEY_UPDATE,HEARTBEAT,MEAS,DIGEST,CERT
@@ -119,7 +119,7 @@ run_with_spdm_emu_mut_auth() {
     cleanup
     
     echo_command cargo run -p spdm-responder-emu --no-default-features --features="$RUN_RESPONDER_MUTAUTH_FEATURES" &
-    sleep 5
+    sleep 20
     pushd test_key
     chmod +x ./spdm_requester_emu
     echo_command  ./spdm_requester_emu --trans PCI_DOE --req_asym ECDSA_P384 --exe_conn DIGEST,CERT,CHAL,MEAS --exe_session KEY_EX,PSK,KEY_UPDATE,HEARTBEAT,MEAS,DIGEST,CERT
@@ -128,7 +128,7 @@ run_with_spdm_emu_mut_auth() {
 
 run_with_spdm_emu_mandatory_mut_auth() {
     echo_command cargo run -p spdm-responder-emu --no-default-features --features="$RUN_RESPONDER_MANDATORY_MUTAUTH_FEATURES" &
-    sleep 5
+    sleep 20
     pushd test_key
     chmod +x ./spdm_requester_emu
     echo_command  ./spdm_requester_emu --trans PCI_DOE --req_asym ECDSA_P384 --exe_conn DIGEST,CERT,CHAL,MEAS --exe_session KEY_EX,PSK,KEY_UPDATE,HEARTBEAT,MEAS,DIGEST,CERT
@@ -151,7 +151,7 @@ run_basic_test() {
 run_rust_spdm_emu() {
     echo "Running requester and responder..."
     echo_command cargo run -p spdm-responder-emu --no-default-features --features="$RUN_RESPONDER_FEATURES" &
-    sleep 5
+    sleep 20
     echo_command cargo run -p spdm-requester-emu --no-default-features --features="$RUN_REQUESTER_FEATURES"
     cleanup
 }
diff --git a/test_key/spdm-emu-version.txt b/test_key/spdm-emu-version.txt
index ca3fdcc5..aa140eb1 100644
--- a/test_key/spdm-emu-version.txt
+++ b/test_key/spdm-emu-version.txt
@@ -1 +1 @@
-https://github.com/DMTF/spdm-emu/releases/tag/3.0.0
\ No newline at end of file
+https://github.com/DMTF/spdm-emu/releases/tag/3.1.1
\ No newline at end of file
diff --git a/test_key/spdm_requester_emu b/test_key/spdm_requester_emu
index df959812..9a3c1783 100644
Binary files a/test_key/spdm_requester_emu and b/test_key/spdm_requester_emu differ
diff --git a/test_key/spdm_responder_emu b/test_key/spdm_responder_emu
index 6019c8df..9cce3077 100644
Binary files a/test_key/spdm_responder_emu and b/test_key/spdm_responder_emu differ