diff --git a/README.md b/README.md
index 526d362..3ceb7fc 100644
--- a/README.md
+++ b/README.md
@@ -234,6 +234,6 @@ Available under the MIT License. This is an independent project not affiliated w
 ## Acknowledgments
 
 - Ocean.xyz mining pool for their service
-- Mempool.space
+- mempool.guide
 - The open-source community for their contributions
 - Bitcoin protocol developers
diff --git a/project_structure.md b/project_structure.md
index e1e6133..46f7788 100644
--- a/project_structure.md
+++ b/project_structure.md
@@ -120,7 +120,7 @@ The application uses Jinja2 templates with a retro-themed design:
 Client-side functionality is organized into modular JavaScript files:
 - **main.js**: Dashboard functionality, real-time updates, and chart rendering
 - **workers.js**: Worker grid rendering, filtering, and mini-chart creation
-- **blocks.js**: Block explorer with data fetching from mempool.space
+- **blocks.js**: Block explorer with data fetching from mempool.guide
 - **block-animation.js**: Interactive block mining animation
 - **BitcoinProgressBar.js**: Floating system monitor with uptime and connection status
 
@@ -210,7 +210,7 @@ All hashrates are normalized to TH/s internally because:
 
 ```
 ┌─────────────────┐      ┌─────────────────┐      ┌─────────────────┐
-│  Ocean.xyz API  │      │  blockchain.info │      │  mempool.space  │
+│  Ocean.xyz API  │      │  blockchain.info │      │  mempool.guide  │
 └────────┬────────┘      └────────┬────────┘      └────────┬────────┘
          │                        │                        │
          ▼                        ▼                        ▼
diff --git a/static/js/blocks.js b/static/js/blocks.js
index 7631c5d..00fbe20 100644
--- a/static/js/blocks.js
+++ b/static/js/blocks.js
@@ -2,7 +2,7 @@
 
 // Global variables
 let currentStartHeight = null;
-const mempoolBaseUrl = "https://mempool.space";
+const mempoolBaseUrl = "https://mempool.guide";
 let blocksCache = {};
 let isLoading = false;
 
@@ -671,7 +671,7 @@ function showBlockDetails(block) {
     }));
     headerSection.append(hashItem);
 
-    // Add mempool.space link
+    // Add mempool.guide link
     const linkItem = $("<div>", {
         class: "block-detail-item"
     });
@@ -684,7 +684,7 @@ function showBlockDetails(block) {
         href: `${mempoolBaseUrl}/block/${block.id}`,
         target: "_blank",
         class: "mempool-link",
-        text: "View on mempool.space",
+        text: "View on mempool.guide",
         css: {
             color: "#f7931a",
             textDecoration: "none"
diff --git a/templates/blocks.html b/templates/blocks.html
index 6ca117e..d9c63fe 100644
--- a/templates/blocks.html
+++ b/templates/blocks.html
@@ -63,7 +63,7 @@
                     <div id="blocks-grid" class="blocks-grid">
                         <!-- Blocks will be generated here via JavaScript -->
                         <div class="loader">
-                            <span class="loader-text">Connecting to mempool.space API<span class="terminal-cursor"></span></span>
+                            <span class="loader-text">Connecting to mempool.guide API<span class="terminal-cursor"></span></span>
                         </div>
                     </div>
                 </div>