diff --git a/cmake/dependencies.cmake b/cmake/dependencies.cmake
index eb68fc2c..40b67541 100644
--- a/cmake/dependencies.cmake
+++ b/cmake/dependencies.cmake
@@ -3,7 +3,7 @@ include( FetchContent )
 
 FetchContent_Declare( tools
     GIT_REPOSITORY  ../../njoy/tools
-    GIT_TAG         e0eb6b4f3e6d7afce7c2c521e68b4f223c50fe2d  # tag: v0.4.0
+    GIT_TAG         662232049b7230da645d741dad413c5f1a5b3ab1  # NOT A RELEASED VERSION - CHANGE ME!
     )
 
 #######################################################################
diff --git a/src/ENDFtk/tree/File/test/File.test.cpp b/src/ENDFtk/tree/File/test/File.test.cpp
index 4621364a..5189b871 100755
--- a/src/ENDFtk/tree/File/test/File.test.cpp
+++ b/src/ENDFtk/tree/File/test/File.test.cpp
@@ -488,22 +488,7 @@ SCENARIO( "tree::File" ) {
 
   GIVEN( "invalid data for a tree::File" ) {
 
-    WHEN( "the data is read from a string/stream with an invalid FEND" ) {
-
-      std::string fileString = chunk() + invalidFEND();
-      auto position = fileString.begin();
-      auto start = fileString.begin();
-      auto end = fileString.end();
-      long lineNumber = 1;
-      HeadRecord head( position, end, lineNumber );
-
-      THEN( "an exception is thrown upon construction" ) {
-
-        CHECK_THROWS( tree::File( head, start, position, end, lineNumber ) );
-      } // THEN
-    } // WHEN
-
-    WHEN( "the data is read from a string/stream without a SEND" ) {
+    WHEN( "the data is read from a string/stream that abruptly ends (no END record)" ) {
 
       std::string fileString = chunk();
       auto position = fileString.begin();
@@ -697,7 +682,3 @@ std::string validSEND(){
 std::string validFEND(){
   return "                                                                   125 0  0     \n";
 }
-
-std::string invalidFEND(){
-  return "                                                                   125 3  0     \n";
-}
diff --git a/src/ENDFtk/tree/Material/test/Material.test.cpp b/src/ENDFtk/tree/Material/test/Material.test.cpp
index 8ca869b1..71bb34ac 100644
--- a/src/ENDFtk/tree/Material/test/Material.test.cpp
+++ b/src/ENDFtk/tree/Material/test/Material.test.cpp
@@ -800,22 +800,7 @@ SCENARIO( "tree::Material" ) {
 
   GIVEN( "invalid data for a tree::File" ) {
 
-    WHEN( "the data is read from a string/stream with an invalid MEND" ) {
-
-      std::string materialString = chunk() + invalidMEND();
-      auto position = materialString.begin();
-      auto start = materialString.begin();
-      auto end = materialString.end();
-      long lineNumber = 1;
-      HeadRecord head( position, end, lineNumber );
-
-      THEN( "an exception is thrown upon construction" ) {
-
-        CHECK_THROWS( tree::Material( head, start, position, end, lineNumber ) );
-      } // THEN
-    } // WHEN
-
-    WHEN( "the data is read from a string/stream without a MEND" ) {
+    WHEN( "the data is read from a string/stream that abruptly ends (no END record)" ) {
 
       std::string materialString = chunk();
       auto position = materialString.begin();
@@ -985,7 +970,3 @@ std::string validFEND(){
 std::string validMEND(){
   return "                                                                     0 0  0     \n";
 }
-
-std::string invalidMEND(){
-  return "                                                                     2 0  0     \n";
-}