diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 63beaf7..c2b41cc 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -6,6 +6,7 @@ on:
       - '**/*.md'
       - 'README*'
       - 'LICENSE*'
+      - 'shell.nix*'
   push:
     branches:
       - master
@@ -13,6 +14,7 @@ on:
       - '**/*.md'
       - 'README*'
       - 'LICENSE*'
+      - 'shell.nix*'
 
 jobs:
   build: