diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index c29ec1bde..a9a86a13d 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -8,6 +8,10 @@ on:
 
 permissions: read-all
 
+env:
+  CARGO_INCREMENTAL: 0
+  CARGO_PROFILE_DEV_DEBUG: 0
+
 jobs:
   build:
     strategy:
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 7cf18a5df..537f0182b 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -6,6 +6,9 @@ on:
 
 permissions: read-all
 
+env:
+  CARGO_INCREMENTAL: 0
+
 jobs:
   build-release:
     name: build-release
diff --git a/flake.nix b/flake.nix
index 194e7df6d..67742e208 100644
--- a/flake.nix
+++ b/flake.nix
@@ -67,6 +67,7 @@
           ZSTD_SYS_USE_PKG_CONFIG = "1";
           LIBSSH2_SYS_USE_PKG_CONFIG = "1";
           NIX_JJ_GIT_HASH = self.rev or "";
+          CARGO_INCREMENTAL = "0";
           postInstall = ''
             $out/bin/jj util mangen > ./jj.1
             installManPage ./jj.1