diff --git a/pkgs/development/tools/continuous-integration/buildbot/master.nix b/pkgs/development/tools/continuous-integration/buildbot/master.nix
index d3b35de6b63b..d6c541cf590b 100644
--- a/pkgs/development/tools/continuous-integration/buildbot/master.nix
+++ b/pkgs/development/tools/continuous-integration/buildbot/master.nix
@@ -75,7 +75,7 @@ let
 in
 buildPythonApplication rec {
   pname = "buildbot";
-  version = "4.2.1";
+  version = "4.3.0";
   format = "pyproject";
 
   disabled = pythonOlder "3.8";
@@ -84,7 +84,7 @@ buildPythonApplication rec {
     owner = "buildbot";
     repo = "buildbot";
     rev = "v${version}";
-    hash = "sha256-Kf8sxZE2cQDQSVSMpRTokJU4f3/M6OJq6bXzGonrRLU=";
+    hash = "sha256-yUtOJRI04/clCMImh5sokpj6MeBIXjEAdf9xnToqJZs=";
   };
 
   build-system = [
diff --git a/pkgs/development/tools/continuous-integration/buildbot/plugins.nix b/pkgs/development/tools/continuous-integration/buildbot/plugins.nix
index 01283b756e99..8cd88b44efa9 100644
--- a/pkgs/development/tools/continuous-integration/buildbot/plugins.nix
+++ b/pkgs/development/tools/continuous-integration/buildbot/plugins.nix
@@ -19,7 +19,7 @@
 
     src = fetchurl {
       url = "https://github.com/buildbot/buildbot/releases/download/v${version}/${pname}-${version}.tar.gz";
-      hash = "sha256-xwu260fcRfnUarEW3dnMcl8YheR0YmYCgNQGy7LaDGw=";
+      hash = "sha256-mn55+Fb2cU2rNB5Nwt41nWXjcZfgd07ijYAAnZnnnwI=";
     };
 
     # Remove unnecessary circular dependency on buildbot
@@ -50,7 +50,7 @@
 
     src = fetchurl {
       url = "https://github.com/buildbot/buildbot/releases/download/v${version}/${pname}-${version}.tar.gz";
-      hash = "sha256-VtrgDVB+U4uM1SQ1h5IMFwU+nRcleYolDjQYJZ7iHbA=";
+      hash = "sha256-VA6xqJBjD4XmQabTN8M+PLvfrG7Hq2ooxChtz2jAT8A=";
     };
 
     buildInputs = [ buildbot-pkg ];
@@ -73,7 +73,7 @@
 
     src = fetchurl {
       url = "https://github.com/buildbot/buildbot/releases/download/v${version}/${pname}-${version}.tar.gz";
-      hash = "sha256-q4RDjn9i4wHtCctqcNIfilS9SNfS+LHohE0dSMHMOt8=";
+      hash = "sha256-c/Nmr0Uscalnndq72Y6jPM1JDs5OyOCERtuX/GXkxp8=";
     };
 
     buildInputs = [ buildbot-pkg ];
@@ -96,7 +96,7 @@
 
     src = fetchurl {
       url = "https://github.com/buildbot/buildbot/releases/download/v${version}/${pname}-${version}.tar.gz";
-      hash = "sha256-HrVoSXXo8P05JbJebKQ/bSPTIxQc9gTDT2RJLhJVhO8=";
+      hash = "sha256-AmY8RkFX0POmVpW71nNz4+dFbr0FHGhNR3RJymDNoaw=";
     };
 
     buildInputs = [ buildbot-pkg ];
@@ -119,7 +119,7 @@
 
     src = fetchurl {
       url = "https://github.com/buildbot/buildbot/releases/download/v${version}/${pname}-${version}.tar.gz";
-      hash = "sha256-x/a3iAb8vNkplAoS57IX+4BxIcH9roCixrBArUQN+04=";
+      hash = "sha256-vofKxpIfbAs7HR43Y7ojHLQEn6/WIdjZPgZieBMsz74=";
     };
 
     buildInputs = [ buildbot-pkg ];
@@ -142,7 +142,7 @@
 
     src = fetchurl {
       url = "https://github.com/buildbot/buildbot/releases/download/v${version}/${pname}-${version}.tar.gz";
-      hash = "sha256-kGH+Wuqn3vkATL8+aKjXbtuBEQro1tekut+7te8abQs=";
+      hash = "sha256-u7HF6X+ClT4rT3LJcTHXWi5oSxCKPXoUDH+QFRI2S0w=";
     };
 
     buildInputs = [ buildbot-pkg ];