diff --git a/.changeset/large-turtles-stare.md b/.changeset/large-turtles-stare.md
new file mode 100644
index 0000000000..40f5a48dd4
--- /dev/null
+++ b/.changeset/large-turtles-stare.md
@@ -0,0 +1,6 @@
+---
+"@pnpm/lockfile-file": patch
+"pnpm": patch
+---
+
+Fix lockfile v6.
diff --git a/lockfile/lockfile-file/src/write.ts b/lockfile/lockfile-file/src/write.ts
index 6987356dd4..9b1e145e1f 100644
--- a/lockfile/lockfile-file/src/write.ts
+++ b/lockfile/lockfile-file/src/write.ts
@@ -71,13 +71,14 @@ async function writeLockfile (
     return rimraf(lockfilePath)
   }
 
-  const lockfileToStringify = (Boolean(opts?.useInlineSpecifiersFormat) || wantedLockfile['lockfileVersion'].toString().startsWith('6.'))
+  const isLockfileV6 = wantedLockfile['lockfileVersion'].toString().startsWith('6.')
+  const lockfileToStringify = (Boolean(opts?.useInlineSpecifiersFormat) || isLockfileV6)
     ? convertToInlineSpecifiersFormat(wantedLockfile) as unknown as Lockfile
     : wantedLockfile
 
   const yamlDoc = yamlStringify(lockfileToStringify, {
     forceSharedFormat: opts?.forceSharedFormat === true,
-    includeEmptySpecifiersField: !opts?.useInlineSpecifiersFormat,
+    includeEmptySpecifiersField: !opts?.useInlineSpecifiersFormat && !isLockfileV6,
   })
 
   return writeFileAtomic(lockfilePath, yamlDoc)
@@ -247,12 +248,13 @@ export async function writeLockfiles (
   }
 
   const forceSharedFormat = opts?.forceSharedFormat === true
-  const wantedLockfileToStringify = (Boolean(opts.useInlineSpecifiersFormat) || opts.wantedLockfile.lockfileVersion.toString().startsWith('6.'))
+  const isLockfileV6 = opts.wantedLockfile.lockfileVersion.toString().startsWith('6.')
+  const wantedLockfileToStringify = (Boolean(opts.useInlineSpecifiersFormat) || isLockfileV6)
     ? convertToInlineSpecifiersFormat(opts.wantedLockfile) as unknown as Lockfile
     : opts.wantedLockfile
   const normalizeOpts = {
     forceSharedFormat,
-    includeEmptySpecifiersField: !opts.useInlineSpecifiersFormat,
+    includeEmptySpecifiersField: !opts.useInlineSpecifiersFormat && !isLockfileV6,
   }
   const yamlDoc = yamlStringify(wantedLockfileToStringify, normalizeOpts)