diff --git a/.gitignore b/.gitignore
index be0472e..db7f964 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1 @@
-dotnet-8.0.120.tar.gz
+dotnet-8.0.121.tar.gz
diff --git a/dotnet-8.0.120.tar.gz.sig b/dotnet-8.0.120.tar.gz.sig
deleted file mode 100644
index c5941dd..0000000
--- a/dotnet-8.0.120.tar.gz.sig
+++ /dev/null
@@ -1,17 +0,0 @@
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-Version: BSN Pgp v1.0.0.0
-
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-=lqC3
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diff --git a/dotnet-8.0.121.tar.gz.sig b/dotnet-8.0.121.tar.gz.sig
new file mode 100644
index 0000000..8459728
--- /dev/null
+++ b/dotnet-8.0.121.tar.gz.sig
@@ -0,0 +1,17 @@
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+Version: BSN Pgp v1.0.0.0
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diff --git a/dotnet8.0.spec b/dotnet8.0.spec
index 3aa4697..1280803 100644
--- a/dotnet8.0.spec
+++ b/dotnet8.0.spec
@@ -12,10 +12,10 @@
 # dotnet-host and netstandard-targeting-pack-2.1
 %global is_latest_dotnet 0
 
-%global host_version 8.0.20
-%global runtime_version 8.0.20
+%global host_version 8.0.21
+%global runtime_version 8.0.21
 %global aspnetcore_runtime_version %{runtime_version}
-%global sdk_version 8.0.120
+%global sdk_version 8.0.121
 %global sdk_feature_band_version %(echo %{sdk_version} | cut -d '-' -f 1 | sed -e 's|[[:digit:]][[:digit:]]$|00|')
 %global templates_version %{runtime_version}
 #%%global templates_version %%(echo %%{runtime_version} | awk 'BEGIN { FS="."; OFS="." } {print $1, $2, $3+1 }')
@@ -780,6 +780,10 @@ export COMPlus_LTTng=0
 
 
 %changelog
+* Sun Oct 05 2025 Omair Majid <omajid@redhat.com> - 8.0.121-1
+- Update to .NET SDK 8.0.121 and Runtime 8.0.21
+- Resolves: RHEL-116868
+
 * Tue Sep 02 2025 Omair Majid <omajid@redhat.com> - 8.0.120-1
 - Update to .NET SDK 8.0.120 and Runtime 8.0.20
 - Resolves: RHEL-112261
diff --git a/release.json b/release.json
index adbe233..9ed73aa 100644
--- a/release.json
+++ b/release.json
@@ -1,10 +1,10 @@
 {
-  "release": "8.0.19",
+  "release": "8.0.21",
   "channel": "8.0",
-  "tag": "v8.0.120",
-  "sdkVersion": "8.0.120",
-  "runtimeVersion": "8.0.20",
-  "aspNetCoreVersion": "8.0.20",
+  "tag": "v8.0.121",
+  "sdkVersion": "8.0.121",
+  "runtimeVersion": "8.0.21",
+  "aspNetCoreVersion": "8.0.21",
   "sourceRepository": "https://github.com/dotnet/dotnet",
-  "sourceVersion": "6825a8d5c72c1893049c2c5ffa491b65cbcea7e0"
+  "sourceVersion": "eed318ae2d2a3b35d344b9ec73c361265a938310"
 }
diff --git a/sources b/sources
index c6e9a39..a08e8c6 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (dotnet-8.0.120.tar.gz) = 00ab2528520490d3f2bd3acaa8d499f3e1afeb9e26a8526c5a66530b5bc2456bdf2dfd96dbac9b5319e2c74b258e9511883b0ab4b5883e739932c2fc66276172
+SHA512 (dotnet-8.0.121.tar.gz) = 129f7a2b214f538a94e9cf6d84dfabb23e02aed25218ee11da5903bda87254840962e79c03c02dc7c6d70679a01c33ee3c90ddcde64480d7391d95995f3cffb0