diff --git a/pkgs/applications/networking/instant-messengers/gajim/default.nix b/pkgs/applications/networking/instant-messengers/gajim/default.nix
index 353cb14ad423..1ef204d6ad7e 100644
--- a/pkgs/applications/networking/instant-messengers/gajim/default.nix
+++ b/pkgs/applications/networking/instant-messengers/gajim/default.nix
@@ -11,6 +11,7 @@
   adwaita-icon-theme,
   gtksourceview5,
   glib-networking,
+  libadwaita,
 
   # Test dependencies
   xvfb-run,
@@ -42,11 +43,11 @@
 
 python3.pkgs.buildPythonApplication rec {
   pname = "gajim";
-  version = "2.2.0";
+  version = "2.3.4";
 
   src = fetchurl {
     url = "https://gajim.org/downloads/${lib.versions.majorMinor version}/gajim-${version}.tar.gz";
-    hash = "sha256-TOZuMiE5RjaJYvNWxl2FyCp6uIO+LLWiRb7N9jc1yRk=";
+    hash = "sha256-mazQcCJXVjDZS0mrbXvvUfZN99/KvD2accJkHx5sXdM=";
   };
 
   format = "pyproject";
@@ -75,6 +76,7 @@ python3.pkgs.buildPythonApplication rec {
     gettext
     wrapGAppsHook3
     gobject-introspection
+    libadwaita
   ];
 
   dontWrapGApps = true;
@@ -95,7 +97,6 @@ python3.pkgs.buildPythonApplication rec {
     with python3.pkgs;
     [
       nbxmpp
-      pygobject3
       dbus-python
       pillow
       css-parser
diff --git a/pkgs/development/python-modules/nbxmpp/default.nix b/pkgs/development/python-modules/nbxmpp/default.nix
index 4ca61a205a29..8d522d0c24e5 100644
--- a/pkgs/development/python-modules/nbxmpp/default.nix
+++ b/pkgs/development/python-modules/nbxmpp/default.nix
@@ -1,6 +1,7 @@
 {
   lib,
   buildPythonPackage,
+  fetchurl,
   fetchFromGitLab,
   gobject-introspection,
   idna,
@@ -16,7 +17,7 @@
 
 buildPythonPackage rec {
   pname = "nbxmpp";
-  version = "6.2.0";
+  version = "6.3.0";
   format = "pyproject";
 
   disabled = pythonOlder "3.10";
@@ -26,7 +27,7 @@ buildPythonPackage rec {
     owner = "gajim";
     repo = "python-nbxmpp";
     rev = "refs/tags/${version}";
-    hash = "sha256-BaRLYuyn0acikX0Imsul2yY+w4jdtXTlE84hAovuZ/4=";
+    hash = "sha256-s29d3SqmnFuqnr7B6u7N+kPKfccMlmTIoQGtjOe1ipg=";
   };
 
   nativeBuildInputs = [
@@ -42,7 +43,12 @@ buildPythonPackage rec {
     idna
     libsoup_3
     packaging
-    pygobject3
+    (pygobject3.overrideAttrs (o: {
+      src = fetchurl {
+        url = "mirror://gnome/sources/pygobject/3.52/pygobject-3.52.3.tar.gz";
+        hash = "sha256-AOQn0pHpV0Yqj61lmp+ci+d2/4Kot2vfQC8eruwIbYI=";
+      };
+    }))
     pyopenssl
   ];