diff --git a/pkgs/by-name/li/libsignal-ffi/package.nix b/pkgs/by-name/li/libsignal-ffi/package.nix
index c3c1bf4dbf5e..72db421bee7e 100644
--- a/pkgs/by-name/li/libsignal-ffi/package.nix
+++ b/pkgs/by-name/li/libsignal-ffi/package.nix
@@ -13,14 +13,14 @@ rustPlatform.buildRustPackage (finalAttrs: {
   pname = "libsignal-ffi";
   # must match the version used in mautrix-signal
   # see https://github.com/mautrix/signal/issues/401
-  version = "0.87.5";
+  version = "0.92.1";
 
   src = fetchFromGitHub {
     fetchSubmodules = true;
     owner = "signalapp";
     repo = "libsignal";
     tag = "v${finalAttrs.version}";
-    hash = "sha256-xffBXvq1ikesIjw6cXfphnTIiyuMiUcY8h0pzSgfD8U=";
+    hash = "sha256-gAXLt0e2k5PA6PgFRQa22oGuNLM7TGkOKQnYtFhn8I8=";
   };
 
   postPatch =
@@ -46,7 +46,7 @@ rustPlatform.buildRustPackage (finalAttrs: {
     NIX_LDFLAGS = if stdenv.hostPlatform.isDarwin then "-lc++" else "-lstdc++";
   };
 
-  cargoHash = "sha256-MwAtUrLoSi/pjsBWOAd9JoepAueq17hkZCH21q72O3w=";
+  cargoHash = "sha256-TqYxkkzlbgrc7jkAubz3TsXhcU8Do5IFaLRqSPiZVR0=";
 
   cargoBuildFlags = [
     "-p"
diff --git a/pkgs/by-name/ma/mautrix-signal/package.nix b/pkgs/by-name/ma/mautrix-signal/package.nix
index 3131ff5c9522..2c70b6cc1dee 100644
--- a/pkgs/by-name/ma/mautrix-signal/package.nix
+++ b/pkgs/by-name/ma/mautrix-signal/package.nix
@@ -20,14 +20,14 @@ let
 in
 buildGoModule rec {
   pname = "mautrix-signal";
-  version = "26.03";
-  tag = "v0.2603.0";
+  version = "26.04";
+  tag = "v0.2604.0";
 
   src = fetchFromGitHub {
     owner = "mautrix";
     repo = "signal";
     inherit tag;
-    hash = "sha256-6CTgzhAojDBn7mArysuSh9GUGaleUHb4HFNq+shpKy4=";
+    hash = "sha256-DKJ8BiBu3lhBqeqjCsNNSwF+iSFd8QnJ4wDS7EGU/UM=";
   };
 
   buildInputs =
@@ -46,7 +46,7 @@ buildGoModule rec {
     CGO_LDFLAGS = toString [ cppStdLib ];
   };
 
-  vendorHash = "sha256-RDr8EUqix8XXMTUGCwCCkQyuvYQeZ8wpYM/dU2dw0m0=";
+  vendorHash = "sha256-rTDEB8OS0RbXNlKHrdtBPkti2PzjbuxaoAKa3uri5CM=";
 
   ldflags = [
     "-X"