diff --git a/library.json b/library.json
index 58b0ea1..2e2e4bb 100644
--- a/library.json
+++ b/library.json
@@ -1,6 +1,6 @@
 {
     "name": "OFM-FunctionBlocks",
-    "version": "0.10.0",
+    "version": "0.10.1",
     "description": "Function Blocks",
     "homepage": "https://openknx.de",
     "authors": {
diff --git a/release_notes.md b/release_notes.md
index d50fcd0..40a6d1d 100644
--- a/release_notes.md
+++ b/release_notes.md
@@ -1,5 +1,15 @@
 # Release Notes
 
+## 0.10.1
+### Breaking Changes
+- none
+
+### Feature
+- none
+
+### Bug
+- Fix #29: Dauer war durch uint8_t Berechnung auf 255s beschränkt bei "Start mit Zeit" in {"Einheit Minuten", "Einheit Stunden"}
+
 ## 0.10.0
 ### Breaking Changes
 - none
diff --git a/src/FunctionBlocks/CountDownBlock.cpp b/src/FunctionBlocks/CountDownBlock.cpp
index 758c8a9..78d40f1 100644
--- a/src/FunctionBlocks/CountDownBlock.cpp
+++ b/src/FunctionBlocks/CountDownBlock.cpp
@@ -79,7 +79,7 @@ void CountDownBlock::handleKo(GroupObject &ko)
             break;
         }
         case FCB_KoCHStartWithTime: {
-            uint8_t value = ko.value(DPT_Value_1_Ucount);
+            uint32_t value = ko.value(DPT_Value_1_Ucount);
             // <Enumeration Id="%ENID%" Value="0"  Text="Deaktiviert"  />
             // <Enumeration Id="%ENID%" Value="1"  Text="Sekunden"  />
             // <Enumeration Id="%ENID%" Value="2"  Text="Minuten"   />