diff --git a/conf/config-ld.example.js b/conf/config-ld.example.js
index 0aa39d7c..3785691d 100644
--- a/conf/config-ld.example.js
+++ b/conf/config-ld.example.js
@@ -381,7 +381,7 @@ config.iota = {
     /**
      * Default limit for express router built into iotagent-node-lib module
      */
-    expressLimit: '1M'
+    expressLimit: '50mb'
 };
 
 config.opcua = {
diff --git a/conf/config-v2.example.js b/conf/config-v2.example.js
index 11d9dc68..911b8b95 100644
--- a/conf/config-v2.example.js
+++ b/conf/config-v2.example.js
@@ -386,7 +386,7 @@ config.iota = {
     /**
      * Default limit for express router built into iotagent-node-lib module
      */
-    expressLimit: '1M'
+    expressLimit: '50mb'
 };
 
 config.opcua = {
diff --git a/conf/config.js b/conf/config.js
index d5668cdd..e7331773 100644
--- a/conf/config.js
+++ b/conf/config.js
@@ -203,7 +203,7 @@ config.iota = {
     /**
      * Default limit for express router built into iotagent-node-lib module
      */
-    expressLimit: '1M'
+    expressLimit: '50mb'
 };
 
 config.opcua = {
diff --git a/docker/README.md b/docker/README.md
index 8caf70d9..0ff2221d 100644
--- a/docker/README.md
+++ b/docker/README.md
@@ -72,7 +72,7 @@ services:
             - "IOTA_EXPLICITATTRS=true"
             - "IOTA_EXTENDED_FORBIDDEN_CHARACTERS=[]"
             - "IOTA_AUTOPROVISION=true"
-            - "IOTA_EXPRESS_LIMIT=1M"
+            - "IOTA_EXPRESS_LIMIT=50mb"
             - "IOTA_OPCUA_ENDPOINT=opc.tcp://iotcarsrv:5001/UA/CarServer"
             - "IOTA_OPCUA_SECURITY_MODE=None"
             - "IOTA_OPCUA_SECURITY_POLICY=None"
diff --git a/docker/docker-compose.yml b/docker/docker-compose.yml
index 6cf03743..cab1a586 100644
--- a/docker/docker-compose.yml
+++ b/docker/docker-compose.yml
@@ -64,7 +64,7 @@ services:
       - "IOTA_EXPLICITATTRS=true"
       - "IOTA_EXTENDED_FORBIDDEN_CHARACTERS=[]"
       - "IOTA_AUTOPROVISION=true"
-      - "IOTA_EXPRESS_LIMIT=1M"
+      - "IOTA_EXPRESS_LIMIT=50mb"
       - "IOTA_OPCUA_ENDPOINT=opc.tcp://iotcarsrv:5001/UA/CarServer"
       - "IOTA_OPCUA_SECURITY_MODE=None"
       - "IOTA_OPCUA_SECURITY_POLICY=None"
diff --git a/docs/opc_ua_agent_tutorial.md b/docs/opc_ua_agent_tutorial.md
index 56c0d3ed..e8872ccb 100644
--- a/docs/opc_ua_agent_tutorial.md
+++ b/docs/opc_ua_agent_tutorial.md
@@ -506,7 +506,7 @@ services:
             - "IOTA_EXPLICITATTRS=true"
             - "IOTA_EXTENDED_FORBIDDEN_CHARACTERS=[]"
             - "IOTA_AUTOPROVISION=true"
-            - "IOTA_EXPRESS_LIMIT=1M"
+            - "IOTA_EXPRESS_LIMIT=50mb"
             - "IOTA_OPCUA_ENDPOINT=opc.tcp://iotcarsrv:5001/UA/CarServer"
             - "IOTA_OPCUA_SECURITY_MODE=None"
             - "IOTA_OPCUA_SECURITY_POLICY=None"