diff --git a/models.js b/models.js
index f4bb9c4..871eb03 100644
--- a/models.js
+++ b/models.js
@@ -250,12 +250,12 @@ class Post extends ATProtoRecord {
 
   /** @returns {number} */
   get likeCount() {
-    return this.data.likeCount;
+    return castToInt(this.data.likeCount);
   }
 
   /** @returns {number} */
   get replyCount() {
-    return this.data.replyCount;
+    return castToInt(this.data.replyCount);
   }
 
   /** @returns {boolean} */
@@ -265,7 +265,7 @@ class Post extends ATProtoRecord {
 
   /** @returns {number} */
   get repostCount() {
-    return this.data.repostCount;
+    return castToInt(this.data.repostCount);
   }
 
   /** @returns {boolean} */
@@ -356,7 +356,7 @@ class FeedGeneratorRecord extends ATProtoRecord {
 
   /** @returns {number} */
   get likeCount() {
-    return this.data.likeCount;
+    return castToInt(this.data.likeCount);
   }
 
   /** @returns {string | undefined} */
diff --git a/utils.js b/utils.js
index 277327a..b486dce 100644
--- a/utils.js
+++ b/utils.js
@@ -60,6 +60,14 @@ function atURI(uri) {
   return new AtURI(uri);
 }
 
+function castToInt(value) {
+  if (value === undefined || value === null || typeof value == "number") {
+    return value;
+  } else {
+    return parseInt(value, 10);
+  }
+}
+
 /** @param {string} html, @returns {string} */
 
 function escapeHTML(html) {