diff --git a/.gitmodules b/.gitmodules
index 82642e4..406ff2d 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -3,7 +3,7 @@
 	url = https://github.com/google/protobuf.git
 [submodule "nanopb"]
 	path = nanopb
-	url = https://code.google.com/p/nanopb/
+	url = https://github.com/nanopb/nanopb.git
 [submodule "lib/TM1638"]
 	path = lib/TM1638
 	url = https://github.com/Boukefalos/tm1638-library.git
diff --git a/nanopb b/nanopb
index 7d4c880..9c36b59 160000
--- a/nanopb
+++ b/nanopb
@@ -1 +1 @@
-Subproject commit 7d4c8807af1fbef2ab79e3afa9f3e152694ac4d5
+Subproject commit 9c36b59603c8a52edb8d786d1d6ef4f429f56ece
diff --git a/src/main.cpp b/src/main.cpp
index a162c9b..e843d17 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -267,12 +267,14 @@ void serialEvent() {
                     pb_decode(&istream, tm1638_SetDisplayToString_fields, &setDisplayToString);
                     byte dots = setDisplayToString.dots;
                     byte pos = setDisplayToString.dots;
-                    tm1638[0]->setDisplayToString(setDisplayToString.string, dots, pos);                  
+                    // tm1638[0]->setDisplayToString(setDisplayToString.string, dots, pos);                  
+                    tm1638[0]->setDisplayToString("TODO", dots, pos);                  
                     bool has_font = setDisplayToString.has_font;
                     if (has_font) {
                         setDisplayToString.font.funcs.decode = &callbackFont;
                         if (pb_decode(&istream, tm1638_SetDisplayToString_fields, &setDisplayToString)) {
-                            tm1638[0]->setDisplayToString(setDisplayToString.string, dots, pos, font);
+                            // tm1638[0]->setDisplayToString(setDisplayToString.string, dots, pos, font);
+                            tm1638[0]->setDisplayToString("TODO", dots, pos, font);
                         }
                     } else { // setDisplayToString.string
                         tm1638[0]->setDisplayToString("test...", dots, pos);