diff --git a/hercules-ci-agent/hercules-ci-agent.cabal b/hercules-ci-agent/hercules-ci-agent.cabal
index 64ccf1d5..45a38ac2 100644
--- a/hercules-ci-agent/hercules-ci-agent.cabal
+++ b/hercules-ci-agent/hercules-ci-agent.cabal
@@ -3,7 +3,7 @@ cabal-version: 2.4
 name:           hercules-ci-agent
 version:        0.7.1
 synopsis:       Runs Continuous Integration tasks on your machines
-category:       API, CI, Testing, DevOps
+category:       Nix, CI, Testing, DevOps
 homepage:       https://docs.hercules-ci.com
 bug-reports:    https://github.com/hercules-ci/hercules-ci-agent/issues
 author:         Hercules CI contributors
diff --git a/hercules-ci-api-agent/hercules-ci-api-agent.cabal b/hercules-ci-api-agent/hercules-ci-api-agent.cabal
index 96e61b86..dd7eff3d 100644
--- a/hercules-ci-api-agent/hercules-ci-api-agent.cabal
+++ b/hercules-ci-api-agent/hercules-ci-api-agent.cabal
@@ -3,7 +3,7 @@ cabal-version: 1.12
 name:           hercules-ci-api-agent
 version:        0.2.1.0
 synopsis:       API definition for Hercules CI Agent to talk to hercules-ci.com or Hercules CI Enterprise
-category:       API, CI, Testing, DevOps
+category:       API, CI, Testing, DevOps, Nix
 homepage:       https://github.com/hercules-ci/hercules-ci-agent#readme
 bug-reports:    https://github.com/hercules-ci/hercules-ci-agent/issues
 author:         Hercules CI contributors
diff --git a/hercules-ci-api-core/hercules-ci-api-core.cabal b/hercules-ci-api-core/hercules-ci-api-core.cabal
index 8c814e90..8aa266ef 100644
--- a/hercules-ci-api-core/hercules-ci-api-core.cabal
+++ b/hercules-ci-api-core/hercules-ci-api-core.cabal
@@ -3,7 +3,7 @@ cabal-version: 1.12
 name:           hercules-ci-api-core
 version:        0.1.1.0
 synopsis:       Types and convenience modules use across Hercules CI API packages
-category:       API, CI, Testing, DevOps
+category:       API, CI, Testing, DevOps, Nix
 homepage:       https://github.com/hercules-ci/hercules-ci-agent#readme
 bug-reports:    https://github.com/hercules-ci/hercules-ci-agent/issues
 author:         Hercules CI contributors