diff --git a/pkgs/development/tools/analysis/radare2/default.nix b/pkgs/development/tools/analysis/radare2/default.nix
index 7d42b772234d..e86ef2532498 100644
--- a/pkgs/development/tools/analysis/radare2/default.nix
+++ b/pkgs/development/tools/analysis/radare2/default.nix
@@ -110,22 +110,22 @@ in {
   #<generated>
   # DO NOT EDIT! Automatically generated by ./update.py
   radare2 = generic {
-    version_commit = "25005";
-    gittap = "4.5.0";
-    gittip = "9d7eda5ec7367d1682e489e92d1be8e37e459296";
-    rev = "4.5.0";
-    version = "4.5.0";
-    sha256 = "1vnvfgg48bccm41pdyjsql6fy1pymmfnip4w2w56b45d7rqcc3v8";
+    version_commit = "24959";
+    gittap = "4.5.1";
+    gittip = "293cf5ae65ba4e28828095dcae212955593ba255";
+    rev = "4.5.1";
+    version = "4.5.1";
+    sha256 = "0qigy1px0jy74c5ig73dc2fqjcy6vcy76i25dx9r3as6zfpkkaxj";
     cs_ver = "4.0.2";
     cs_sha256 = "0y5g74yjyliciawpn16zhdwya7bd3d7b1cccpcccc2wg8vni1k2w";
   };
   r2-for-cutter = generic {
-    version_commit = "25024";
-    gittap = "4.5.0";
-    gittip = "9d7eda5ec7367d1682e489e92d1be8e37e459296";
-    rev = "9d7eda5ec7367d1682e489e92d1be8e37e459296";
-    version = "2020-07-17";
-    sha256 = "1vnvfgg48bccm41pdyjsql6fy1pymmfnip4w2w56b45d7rqcc3v8";
+    version_commit = "24959";
+    gittap = "4.5.1";
+    gittip = "293cf5ae65ba4e28828095dcae212955593ba255";
+    rev = "4.5.1";
+    version = "4.5.1";
+    sha256 = "0qigy1px0jy74c5ig73dc2fqjcy6vcy76i25dx9r3as6zfpkkaxj";
     cs_ver = "4.0.2";
     cs_sha256 = "0y5g74yjyliciawpn16zhdwya7bd3d7b1cccpcccc2wg8vni1k2w";
   };
diff --git a/pkgs/development/tools/analysis/radare2/update.py b/pkgs/development/tools/analysis/radare2/update.py
index b9e72e623660..ebd6e073fe53 100755
--- a/pkgs/development/tools/analysis/radare2/update.py
+++ b/pkgs/development/tools/analysis/radare2/update.py
@@ -5,6 +5,8 @@
 # and is formatted with black.
 import fileinput
 import json
+import xml.etree.ElementTree as ET
+from urllib.parse import urlparse
 import re
 import subprocess
 import tempfile
@@ -30,10 +32,20 @@ def prefetch_github(owner: str, repo: str, ref: str) -> str:
 
 
 def get_radare2_rev() -> str:
-    url = "https://api.github.com/repos/radare/radare2/releases/latest"
-    with urllib.request.urlopen(url) as response:
-        release = json.load(response)  # type: ignore
-    return release["tag_name"]
+    feed_url = "http://github.com/radareorg/radare2/releases.atom"
+    with urllib.request.urlopen(feed_url) as resp:
+        tree = ET.fromstring(resp.read())
+    releases = tree.findall(".//{http://www.w3.org/2005/Atom}entry")
+    for release in releases:
+        link = release.find("{http://www.w3.org/2005/Atom}link")
+        assert link is not None
+        url = urlparse(link.attrib["href"])
+        tag = url.path.split("/")[-1]
+        if re.match(r"[0-9.]+", tag):
+            return tag
+        else:
+            print(f"ignore {tag}")
+    raise RuntimeError(f"No release found at {feed_url}")
 
 
 def get_cutter_version() -> str: