diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 284fe2f6..aed25a25 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -21,4 +21,4 @@ jobs:
         if: ${{ matrix.os != 'windows-latest' }}
         with:
           nix_path: nixpkgs=https://github.com/NixOS/nixpkgs/archive/20.09.tar.gz
-      - run: cargo xtask ci --nix ${{ matrix.os != 'windows-latest' }}
+      - run: cargo xtask --nix=${{ matrix.os != 'windows-latest' }} ci
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9fdb9607..7afd6e59 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## Unreleased
+
+### Changed
+
+- Nushell: upgrade minimum supported version to v0.37.0.
+
 ## [0.7.5] - 2020-09-09
 
 ### Added
diff --git a/README.md b/README.md
index 32c42ba4..28dddb3b 100644
--- a/README.md
+++ b/README.md
@@ -182,7 +182,7 @@ Add this to your configuration (find it by running `config path` in Nushell):
 startup = ["zoxide init nushell --hook prompt | save ~/.zoxide.nu", "source ~/.zoxide.nu"]
 ```
 
-Note: zoxide only supports Nushell v0.36.0 and above.
+Note: zoxide only supports Nushell v0.37.0 and above.
 
 </details>
 
diff --git a/man/zoxide-init.1 b/man/zoxide-init.1
index be6b1a01..3b61c402 100644
--- a/man/zoxide-init.1
+++ b/man/zoxide-init.1
@@ -36,7 +36,7 @@ Nushell):
     \fBstartup = ["zoxide init nushell --hook prompt | save ~/.zoxide.nu", "source ~/.zoxide.nu"]\fR
 .fi
 .sp
-Note: zoxide only supports Nushell v0.36.0 and above.
+Note: zoxide only supports Nushell v0.37.0 and above.
 .TP
 .B powershell
 Add this to your configuration (find it by running \fBecho $profile\fR in
diff --git a/templates/nushell.txt b/templates/nushell.txt
index 2f65d890..9874a31b 100644
--- a/templates/nushell.txt
+++ b/templates/nushell.txt
@@ -33,10 +33,10 @@ def __zoxide_hook [] {
 }
 
 # Initialize hook.
-let-env PROMPT_STRING = (
-    let prompt = (if ($nu.env | select PROMPT_STRING | empty?) {
+let-env PROMPT_COMMAND = (
+    let prompt = (if ($nu.env | select PROMPT_COMMAND | empty?) {
         if ($nu.config | select prompt | empty?) { '__zoxide_prompt' } { $nu.config.prompt }
-    } { $nu.env.PROMPT_STRING });
+    } { $nu.env.PROMPT_COMMAND });
     if ($prompt | str contains '__zoxide_hook') { $prompt } { $'__zoxide_hook;($prompt)' }
 )
 
@@ -107,4 +107,4 @@ alias {{cmd}}i = __zoxide_zi
 #
 #   startup = ['zoxide init nushell --hook prompt | save ~/.zoxide.nu', 'source ~/.zoxide.nu']
 #
-# Note: zoxide only supports Nushell v0.36.0 and above.
+# Note: zoxide only supports Nushell v0.37.0 and above.