diff --git a/GCryptLib/include/GCrypt/Key.h b/GCryptLib/include/GCrypt/Key.h
index d0133da..36999ec 100644
--- a/GCryptLib/include/GCrypt/Key.h
+++ b/GCryptLib/include/GCrypt/Key.h
@@ -21,7 +21,7 @@ namespace Leonetienne::GCrypt {
       static Key LoadFromFile(const std::string& path);
 
       //! Will save a keyfile
-      void WriteToFile(const std::string& path);
+      void WriteToFile(const std::string& path) const;
 
       Key();
       Key(const Key& k);
diff --git a/GCryptLib/include/GCrypt/Version.h b/GCryptLib/include/GCrypt/Version.h
index a5623c2..9063e14 100644
--- a/GCryptLib/include/GCrypt/Version.h
+++ b/GCryptLib/include/GCrypt/Version.h
@@ -1,7 +1,7 @@
 #ifndef GCRYPT_VERSION_H
 #define GCRYPT_VERSION_H
 
-#define GCRYPT_VERSION 0.235
+#define GCRYPT_VERSION 0.236
 
 #endif
 
diff --git a/GCryptLib/src/Key.cpp b/GCryptLib/src/Key.cpp
index 0dc23b1..20f1e04 100644
--- a/GCryptLib/src/Key.cpp
+++ b/GCryptLib/src/Key.cpp
@@ -50,7 +50,7 @@ namespace Leonetienne::GCrypt {
     return key;
   }
 
-  void Key::WriteToFile(const std::string& path) {
+  void Key::WriteToFile(const std::string& path) const {
     // Create an ofilestream
     std::ofstream ofs(path, std::ios::out | std::ios::binary);