diff --git a/.github/workflows/test-suite.yml b/.github/workflows/test-suite.yml
index ae485bf..2e778dc 100644
--- a/.github/workflows/test-suite.yml
+++ b/.github/workflows/test-suite.yml
@@ -7,8 +7,8 @@ on:
     branches:
       - main
 env:
-  NU_VERSION: 0.106.0
-  BASH_ENV_JSON_VERSION: 0.10.1
+  NU_VERSION: 0.116.1
+  BASH_ENV_JSON_VERSION: 0.11.0
 
 jobs:
   test:
@@ -19,7 +19,7 @@ jobs:
         uses: actions/checkout@v4
       - name: Download Nushell $NU_VERSION
         run: |
-          curl -L https://github.com/nushell/nushell/releases/download/${NU_VERSION}/nu-${NU_VERSION}-x86_64-unknown-linux-gnu.tar.gz | tar xzf -
+          curl -L "https://github.com/nushell/nushell/releases/download/${NU_VERSION}/nu-${NU_VERSION}-x86_64-unknown-linux-gnu.tar.gz" | tar xzf -
       - name: Version Check
         run: |
           export PATH=./nu-${NU_VERSION}-x86_64-unknown-linux-gnu:$PATH
@@ -28,11 +28,12 @@ jobs:
           jq --version
       - name: Download bash-env-json $BASH_ENV_JSON_VERSION
         run: |
-          curl -L https://github.com/tesujimath/bash-env-json/archive/refs/tags/${BASH_ENV_JSON_VERSION}.tar.gz | tar xzf -
+          curl -L "https://github.com/tesujimath/bash-env-json/archive/refs/tags/${BASH_ENV_JSON_VERSION}.tar.gz" | tar xzf -
       - name: Run Module Tests
         run: |
           # note that Nushell doesn't like relative paths on the $PATH
-          export PATH=$(pwd)/bash-env-json-${BASH_ENV_JSON_VERSION}:./nu-${NU_VERSION}-x86_64-unknown-linux-gnu:$PATH
+          PATH="$(pwd)/bash-env-json-${BASH_ENV_JSON_VERSION}:./nu-${NU_VERSION}-x86_64-unknown-linux-gnu:$PATH"
+          export PATH
           which bash-env-json
           nu --no-config-file --no-history -c "use bash-env.nu ; use tests.nu run_bash_env_tests ; run_bash_env_tests"
           nu --no-config-file --no-history -c "use bash-env.nu ; use extra-module-tests.nu ; extra-module-tests"
diff --git a/README.md b/README.md
index f817d3e..a2a7c1f 100644
--- a/README.md
+++ b/README.md
@@ -51,6 +51,19 @@ b
 
 Rather than folding shell variables in with the environment variables as was done by the plugin, the `-s` or `--shellvars` option results in structured output with separate `env` and `shellvars`.
 
+The `--export` option is deprecated. It returns a flat record containing environment changes merged with selected shell variables. To retrieve selected shell variables with `--shellvars`, select them from the nested `shellvars` record:
+
+```nu
+(bash-env ./environment.sh --shellvars).shellvars | select A
+```
+
+If you also need the environment changes returned by `--export [A]`, merge the records:
+
+```nu
+let changes = bash-env ./environment.sh --shellvars
+$changes.env | merge ($changes.shellvars | select --optional A)
+```
+
 ```
 > echo "ABC=123" | bash-env
 ╭──────────────╮
diff --git a/extra-module-tests.nu b/extra-module-tests.nu
index fd24d28..e81f942 100644
--- a/extra-module-tests.nu
+++ b/extra-module-tests.nu
@@ -1,4 +1,4 @@
-use std assert
+use std/assert
 
 # TODO use testing.nu testing module,
 # which wasn't working at the time I wrote these tests
diff --git a/flake.lock b/flake.lock
index 9cf191e..2e870ce 100644
--- a/flake.lock
+++ b/flake.lock
@@ -2,17 +2,16 @@
   "nodes": {
     "bash-env-json": {
       "inputs": {
-        "flake-utils": "flake-utils",
         "nixpkgs": [
           "nixpkgs"
         ]
       },
       "locked": {
-        "lastModified": 1735682486,
-        "narHash": "sha256-IHfUIAkpaRyBmzT654bAzpTHUhcrtU643uxkPbveYOM=",
+        "lastModified": 1786572290,
+        "narHash": "sha256-5wi9DxK2Up+lM3EY9YRyNRfkwmzqVbHPLAr0fOboWWo=",
         "owner": "tesujimath",
         "repo": "bash-env-json",
-        "rev": "36bb756f38282e33deeed8e27618ecde3503e032",
+        "rev": "54605ef06cab813c80e7d78262a1aac46949a21b",
         "type": "github"
       },
       "original": {
@@ -26,24 +25,6 @@
       "inputs": {
         "systems": "systems"
       },
-      "locked": {
-        "lastModified": 1726560853,
-        "narHash": "sha256-X6rJYSESBVr3hBoH0WbKE5KvhPU5bloyZ2L4K60/fPQ=",
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "rev": "c1dfcf08411b08f6b8615f7d8971a2bfa81d5e8a",
-        "type": "github"
-      },
-      "original": {
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "type": "github"
-      }
-    },
-    "flake-utils_2": {
-      "inputs": {
-        "systems": "systems_2"
-      },
       "locked": {
         "lastModified": 1710146030,
         "narHash": "sha256-SZ5L6eA7HJ/nmkzGG7/ISclqe6oZdOZTNoesiInkXPQ=",
@@ -60,11 +41,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1739138025,
-        "narHash": "sha256-M4ilIfGxzbBZuURokv24aqJTbdjPA9K+DtKUzrJaES4=",
+        "lastModified": 1791966044,
+        "narHash": "sha256-t1hT8UW97rFCWCJO7/pClvu0AhLN5V3uir2M0ic4w/Q=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "b2243f41e860ac85c0b446eadc6930359b294e79",
+        "rev": "319e4cebef10cbb636c6ea392137b52ad105336a",
         "type": "github"
       },
       "original": {
@@ -77,7 +58,7 @@
     "root": {
       "inputs": {
         "bash-env-json": "bash-env-json",
-        "flake-utils": "flake-utils_2",
+        "flake-utils": "flake-utils",
         "nixpkgs": "nixpkgs"
       }
     },
@@ -95,21 +76,6 @@
         "repo": "default",
         "type": "github"
       }
-    },
-    "systems_2": {
-      "locked": {
-        "lastModified": 1681028828,
-        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
-        "owner": "nix-systems",
-        "repo": "default",
-        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
-        "type": "github"
-      },
-      "original": {
-        "owner": "nix-systems",
-        "repo": "default",
-        "type": "github"
-      }
     }
   },
   "root": "root",
diff --git a/tests.nu b/tests.nu
index bfebb77..b2f3cd0 100644
--- a/tests.nu
+++ b/tests.nu
@@ -1,4 +1,4 @@
-use std assert
+use std/assert
 
 # TODO use testing.nu testing module,
 # which wasn't working at the time I wrote these tests