diff --git a/.github/workflows/build-macos.yml b/.github/workflows/build-macos.yml
index 857a43441a..ffad00349d 100644
--- a/.github/workflows/build-macos.yml
+++ b/.github/workflows/build-macos.yml
@@ -25,7 +25,7 @@ jobs:
         target: 'desktop'
 
     - name: Install Dependencies
-      run: brew install ninja doxygen graphviz protobuf@21 hdf5@1.10 pkg-config
+      run: brew install ninja doxygen graphviz protobuf hdf5@1.10 pkg-config
 
     - name: Install Cap’n Proto
       run: |
@@ -85,7 +85,7 @@ jobs:
         -DECAL_THIRDPARTY_BUILD_QWT=ON \
         -DECAL_THIRDPARTY_BUILD_YAML-CPP=ON \
         -DCMAKE_BUILD_TYPE=Release \
-        -DCMAKE_PREFIX_PATH="/usr/local/opt/hdf5@1.10:/usr/local/opt/protobuf@21" \
+        -DCMAKE_PREFIX_PATH=/usr/local/opt/hdf5@1.10 \
         -DCMAKE_CXX_STANDARD=17 \
         -DCMAKE_FIND_PACKAGE_PREFER_CONFIG=ON \
         -DPython_FIND_STRATEGY=LOCATION \
diff --git a/contrib/ecalproto/src/ecal_proto_dyn.cpp b/contrib/ecalproto/src/ecal_proto_dyn.cpp
index 0e53dec6fe..3394e6d65c 100644
--- a/contrib/ecalproto/src/ecal_proto_dyn.cpp
+++ b/contrib/ecalproto/src/ecal_proto_dyn.cpp
@@ -28,23 +28,105 @@
 #include <sstream>
 #include <fstream>
 
+#include "google/protobuf/port_def.inc"
+
 namespace eCAL
 {
 namespace protobuf
 {
+#if PROTOBUF_VERSION >= 5026000
+  class ParserErrorCollector : public google::protobuf::io::ErrorCollector
+  {
+  public:
+    ParserErrorCollector() = default;
+    ~ParserErrorCollector() override = default;
+
+    std::string Get() { return(m_ss.str()); }
+
+    // Indicates that there was an error in the input at the given line and
+    // column numbers.  The numbers are zero-based, so you may want to add
+    // 1 to each before printing them.
+    void RecordError(int line_,
+      google::protobuf::io::ColumnNumber column_,
+      absl::string_view message_) override
+    {
+      Add(line_, column_, "ERROR", message_);
+    }
+
+    // Indicates that there was a warning in the input at the given line and
+    // column numbers.  The numbers are zero-based, so you may want to add
+    // 1 to each before printing them.
+    void RecordWarning(int line_, 
+      google::protobuf::io::ColumnNumber column_,
+      absl::string_view message_) override
+    {
+      Add(line_, column_, "WARNING: ", message_);
+    }
+
+  private:
+    void Add(int line_, google::protobuf::io::ColumnNumber column_, const std::string& type_, absl::string_view message_)
+    {
+      m_ss << line_ << ":" << column_ << " " << type_ << ": " << message_ << std::endl;
+    }
+
+    std::stringstream m_ss;
+};
+
+  class DescriptorErrorCollector : public google::protobuf::DescriptorPool::ErrorCollector
+  {
+  public:
+    DescriptorErrorCollector() = default;
+    ~DescriptorErrorCollector() override {}
+
+    std::string Get() { return(m_ss.str()); }
+
+    void RecordError(absl::string_view filename,
+      absl::string_view element_name,
+      const google::protobuf::Message* descriptor,
+      ErrorLocation location,
+      absl::string_view message) override
+    {
+      Add(filename, element_name, descriptor, location, "ERROR", message);
+    }
+
+    void RecordWarning(absl::string_view filename,
+      absl::string_view element_name,
+      const google::protobuf::Message* descriptor,
+      ErrorLocation location,
+      absl::string_view message) override
+    {
+      Add(filename, element_name, descriptor, location, "WARNING", message);
+    }
+
+  private:
+    void Add(
+      absl::string_view filename,
+      absl::string_view element_name,
+      const google::protobuf::Message* /*descriptor*/,
+      ErrorLocation location,
+      const std::string& type,
+      absl::string_view message
+    )
+    {
+      m_ss << filename << " " << element_name << " " << location << " " << type  << ": " << message << std::endl;
+    }
 
+    std::stringstream m_ss;
+  };
+
+#else
   class ParserErrorCollector : public google::protobuf::io::ErrorCollector
   {
   public:
-    ParserErrorCollector() {}
-    ~ParserErrorCollector() {}
+      ParserErrorCollector() = default;
+      ~ParserErrorCollector() override = default;
 
     std::string Get() { return(m_ss.str()); }
 
     // Indicates that there was an error in the input at the given line and
     // column numbers.  The numbers are zero-based, so you may want to add
     // 1 to each before printing them.
-    void AddError(int line_, int column_, const std::string& msg_)
+    void AddError(int line_, int column_, const std::string& msg_) override
     {
       Add(line_, column_, "ERROR: " + msg_);
     }
@@ -52,7 +134,7 @@ namespace protobuf
     // Indicates that there was a warning in the input at the given line and
     // column numbers.  The numbers are zero-based, so you may want to add
     // 1 to each before printing them.
-    void AddWarning(int line_, int column_, const std::string& msg_)
+    void AddWarning(int line_, int column_, const std::string& msg_) override
     {
       Add(line_, column_, "WARNING: " + msg_);
     }
@@ -69,8 +151,8 @@ namespace protobuf
   class DescriptorErrorCollector : public google::protobuf::DescriptorPool::ErrorCollector
   {
   public:
-    DescriptorErrorCollector() {}
-    ~DescriptorErrorCollector() {}
+    DescriptorErrorCollector() = default;
+    ~DescriptorErrorCollector() override {}
 
     std::string Get() { return(m_ss.str()); }
 
@@ -80,7 +162,7 @@ namespace protobuf
       const google::protobuf::Message* descriptor,    // Descriptor of the erroneous element.
       ErrorLocation location,                         // One of the location constants, above.
       const std::string& message                      // Human-readable error message.
-    )
+    ) override
     {
       Add(filename, element_name, descriptor, location, "ERROR: " + message);
     }
@@ -91,7 +173,7 @@ namespace protobuf
       const google::protobuf::Message* descriptor,    // Descriptor of the erroneous element.
       ErrorLocation location,                         // One of the location constants, above.
       const std::string& message                      // Human-readable error message.
-    )
+    ) override
     {
       Add(filename, element_name, descriptor, location, "WARNING: " + message);
     }
@@ -110,6 +192,8 @@ namespace protobuf
 
     std::stringstream m_ss;
   };
+#endif
+
 
   google::protobuf::Message* CProtoDynDecoder::GetProtoMessageFromFile(const std::string& proto_filename_, const std::string& msg_type_, std::string& error_s_)
   {