diff --git a/src/external/e57.cmake b/src/external/e57.cmake
index 44bf91b392..0742b37dfd 100644
--- a/src/external/e57.cmake
+++ b/src/external/e57.cmake
@@ -4,7 +4,7 @@
 
 option(MESHLAB_ALLOW_DOWNLOAD_SOURCE_LIBE57 "Allow download and use of libE57Format source" ON)
 
-set(LIBE57_VER 2.3.0)
+set(LIBE57_VER 3.1.1)
 
 if (TARGET XercesC::XercesC)
 	if(MESHLAB_ALLOW_DOWNLOAD_SOURCE_LIBE57)
@@ -15,7 +15,7 @@ if (TARGET XercesC::XercesC)
 			set(LIBE57_LINK
 				https://github.com/asmaloney/libE57Format/archive/refs/tags/v${LIBE57_VER}.zip
 				https://www.meshlab.net/data/libs/libE57Format-${LIBE57_VER}.zip)
-			set(LIBE57_MD5 958ada3883f9b60195f79bbab156f3e3)
+			set(LIBE57_MD5 1da204e43a2e2e1ca5d23deb77dd8b8e)
 			download_and_unzip(
 				NAME "LibE57"
 				MD5 ${LIBE57_MD5}
diff --git a/src/meshlabplugins/io_e57/io_e57.cpp b/src/meshlabplugins/io_e57/io_e57.cpp
index c9b0553c69..13f13b2a79 100755
--- a/src/meshlabplugins/io_e57/io_e57.cpp
+++ b/src/meshlabplugins/io_e57/io_e57.cpp
@@ -257,7 +257,7 @@ void E57IOPlugin::save(const QString& formatName, const QString& fileName, MeshM
     E57_WRAPPER(fileWriter.IsOpen(), "Error while opening E57 file for writing!");
 
     scanHeader.guid = QUuid::createUuid().toString(QUuid::WithBraces).toStdString();
-    scanHeader.pointsSize = static_cast<int64_t>(totalPoints);
+    scanHeader.pointCount = static_cast<int64_t>(totalPoints);
 
     e57::Translation translation;
     e57::Quaternion quaternion;
@@ -289,21 +289,21 @@ void E57IOPlugin::save(const QString& formatName, const QString& fileName, MeshM
     scanHeader.pointFields.cartesianZField = true;
 
     if ((mask & Mask::IOM_VERTNORMAL) != 0) {
-        scanHeader.pointFields.normalX = true;
-        scanHeader.pointFields.normalY = true;
-        scanHeader.pointFields.normalZ = true;
+        scanHeader.pointFields.normalXField = true;
+        scanHeader.pointFields.normalYField = true;
+        scanHeader.pointFields.normalZField = true;
     }
     if ((mask & Mask::IOM_VERTCOLOR) != 0) {
         scanHeader.pointFields.isColorInvalidField = false;
         scanHeader.pointFields.colorRedField = true;
         scanHeader.pointFields.colorGreenField = true;
         scanHeader.pointFields.colorBlueField = true;
-        scanHeader.colorLimits.colorRedMinimum = e57::E57_UINT8_MIN;
-        scanHeader.colorLimits.colorRedMaximum = e57::E57_UINT8_MAX;
-        scanHeader.colorLimits.colorGreenMinimum = e57::E57_UINT8_MIN;
-        scanHeader.colorLimits.colorGreenMaximum = e57::E57_UINT8_MAX;
-        scanHeader.colorLimits.colorBlueMinimum = e57::E57_UINT8_MIN;
-        scanHeader.colorLimits.colorBlueMaximum = e57::E57_UINT8_MAX;
+        scanHeader.colorLimits.colorRedMinimum = e57::UINT8_MIN;
+		scanHeader.colorLimits.colorRedMaximum = std::numeric_limits<uint8_t>::max();
+        scanHeader.colorLimits.colorGreenMinimum = e57::UINT8_MIN;
+        scanHeader.colorLimits.colorGreenMaximum = std::numeric_limits<uint8_t>::max();
+        scanHeader.colorLimits.colorBlueMinimum = e57::UINT8_MIN;
+        scanHeader.colorLimits.colorBlueMaximum = std::numeric_limits<uint8_t>::max();
     }
     if ((mask & Mask::IOM_VERTQUALITY) != 0) {
         float min = std::numeric_limits<float>::max();
diff --git a/src/meshlabplugins/io_e57/io_e57.h b/src/meshlabplugins/io_e57/io_e57.h
index 753266d51a..944c2ab117 100755
--- a/src/meshlabplugins/io_e57/io_e57.h
+++ b/src/meshlabplugins/io_e57/io_e57.h
@@ -58,13 +58,13 @@ namespace vcg {
                 std::vector<int8_t> sphericalInvalidState;
 
                 // Intensity
-                std::vector<float> intensity; /* Quality */
+                std::vector<double> intensity; /* Quality */
                 std::vector<int8_t> intensityInvalid;
 
                 // Colors
-                std::vector<uint8_t> colorRed;
-                std::vector<uint8_t> colorGreen;
-                std::vector<uint8_t> colorBlue;
+                std::vector<uint16_t> colorRed;
+                std::vector<uint16_t> colorGreen;
+                std::vector<uint16_t> colorBlue;
                 std::vector<int8_t> colorInvalid;
 
                 // Normals
@@ -136,8 +136,8 @@ namespace vcg {
                         }
                     }
 
-                    if (scanHeader.pointFields.normalX && scanHeader.pointFields.normalY &&
-                        scanHeader.pointFields.normalZ) {
+                    if (scanHeader.pointFields.normalXField && scanHeader.pointFields.normalYField &&
+                        scanHeader.pointFields.normalZField) {
 
                         normalX.resize(buffSize); normalY.resize(buffSize); normalZ.resize(buffSize);