diff --git a/repeater/http_server.py b/repeater/http_server.py
index 9c41278..9615a2c 100644
--- a/repeater/http_server.py
+++ b/repeater/http_server.py
@@ -295,6 +295,13 @@ class APIEndpoints:
         try:
             stats = self.stats_getter() if self.stats_getter else {}
             stats["version"] = __version__
+            
+            # Add pyMC_Core version
+            try:
+                import pymc_core
+                stats["core_version"] = pymc_core.__version__
+            except ImportError:
+                stats["core_version"] = "unknown"
 
             return stats
         except Exception as e:
diff --git a/repeater/templates/nav.html b/repeater/templates/nav.html
index 9eb248b..1c1b9db 100644
--- a/repeater/templates/nav.html
+++ b/repeater/templates/nav.html
@@ -103,7 +103,12 @@
 
         <div style="display: flex; gap: 8px; align-items: center; margin-bottom: var(--spacing-md);">
             <div class="status-badge" id="status-badge" title="System operational status">Online</div>
-            <div class="version-badge" id="version-badge" title="Software version">v1.0.0</div>
+        </div>
+        
+        <!-- Version badges -->
+        <div style="display: flex; gap: 6px; align-items: center; margin-bottom: var(--spacing-md); flex-wrap: wrap;">
+            <div class="version-badge" id="repeater-version-badge" title="pyMC_Repeater version">R:v1.0.1</div>
+            <div class="version-badge" id="core-version-badge" title="pyMC_Core version">C:v1.0.2</div>
         </div>
 
         <!-- Mode Toggle Buttons -->
@@ -457,9 +462,12 @@
                     renderNoiseFloorSparkline();
                 }
 
-                // Update version badge
+                // Update version badges
                 if (data.version) {
-                    document.getElementById('version-badge').textContent = 'v' + data.version;
+                    document.getElementById('repeater-version-badge').textContent = 'R:v' + data.version;
+                }
+                if (data.core_version) {
+                    document.getElementById('core-version-badge').textContent = 'C:v' + data.core_version;
                 }
 
                 // Update duty cycle