diff --git a/pkgs/tools/networking/flannel/default.nix b/pkgs/tools/networking/flannel/default.nix
index b4f632722b0b..a2654b90d3e1 100644
--- a/pkgs/tools/networking/flannel/default.nix
+++ b/pkgs/tools/networking/flannel/default.nix
@@ -2,16 +2,16 @@
 
 buildGoModule rec {
   pname = "flannel";
-  version = "0.25.1";
+  version = "0.25.2";
   rev = "v${version}";
 
-  vendorHash = "sha256-hitYX6Y2ElDhjwgoX5feSNwpTUA6PXqpH70ZnIW9RaM=";
+  vendorHash = "sha256-Oo5vguQJOV0rh9gjFO9WdDWZFep3tdUg0ItMo8x4Lkk=";
 
   src = fetchFromGitHub {
     inherit rev;
     owner = "flannel-io";
     repo = "flannel";
-    sha256 = "sha256-Aa+LPn5fRrv7vzCqqbHzNaVn5nU6/mi09t6y/5nx0+s=";
+    sha256 = "sha256-OyYZMSQGsJaYvGwMC2JpJDosYSjIP7c4/CgwcmYEr5Q=";
   };
 
   ldflags = [ "-X github.com/flannel-io/flannel/pkg/version.Version=${rev}" ];