diff --git a/python/pluginCore/resources/META-INF/plugin.xml b/python/pluginCore/resources/META-INF/plugin.xml
index 9fa6d77b9b4c..6cab36e08014 100644
--- a/python/pluginCore/resources/META-INF/plugin.xml
+++ b/python/pluginCore/resources/META-INF/plugin.xml
@@ -60,8 +60,13 @@ The Python plug-in provides smart editing for Python scripts. The feature set of
   <resource-bundle>messages.PyBundle</resource-bundle>
 
   <extensions defaultExtensionNs="com.intellij">
-    <localInspection language="TOML" enabledByDefault="true" implementationClass="com.jetbrains.python.sdk.poetry.PoetryPackageVersionsInspection" key="INSP.poetry.package.versions.display.name" bundle="messages.PyBundle" groupKey="INSP.GROUP.python" suppressId="PoetryPackageVersions" shortName="PoetryPackageVersionsInspection"/>
-    <localInspection language="TOML" enabledByDefault="true" implementationClass="com.jetbrains.python.sdk.uv.UvPackageVersionsInspection" key="INSP.poetry.package.versions.display.name" bundle="messages.PyBundle" groupKey="INSP.GROUP.python" suppressId="UvPackageVersions" shortName="UvPackageVersionsInspection"/>
+    <localInspection language="TOML" enabledByDefault="true"
+                     implementationClass="com.jetbrains.python.sdk.poetry.PoetryPackageVersionsInspection"
+                     key="INSP.poetry.package.versions.display.name" bundle="messages.PyBundle" groupKey="INSP.GROUP.python"
+                     suppressId="PoetryPackageVersions" shortName="PoetryPackageVersionsInspection"/>
+    <localInspection language="TOML" enabledByDefault="true" implementationClass="com.jetbrains.python.sdk.uv.UvPackageVersionsInspection"
+                     key="INSP.poetry.package.versions.display.name" bundle="messages.PyBundle" groupKey="INSP.GROUP.python"
+                     suppressId="UvPackageVersions" shortName="UvPackageVersionsInspection"/>
     <registryKey defaultValue="10" description="How ofter system pythons must be refreshed (minutes)" key="python.system.refresh.minutes"/>
     <postStartupActivity implementation="com.intellij.python.community.services.systemPython.impl.SystemPythonInitialLoader"/>
     <fileType name="Requirements.txt"
@@ -87,7 +92,8 @@ The Python plug-in provides smart editing for Python scripts. The feature set of
                             implementationClass="com.jetbrains.python.poetry.PoetryDependencyPackageNameCompletionContributor"/>
     <completion.contributor language="TOML"
                             implementationClass="com.jetbrains.python.poetry.PoetryDependencyVersionCompletionContributor"/>
-    <localInspection language="Requirements" shortName="UnsatisfiedRequirementInspection" suppressId="UnsatisfiedRequirement" bundle="messages.PyBundle"
+    <localInspection language="Requirements" shortName="UnsatisfiedRequirementInspection" suppressId="UnsatisfiedRequirement"
+                     bundle="messages.PyBundle"
                      key="INSP.requirement.uninstalled.name" groupKey="INSP.GROUP.requirements" enabledByDefault="true" level="WARNING"
                      implementationClass="com.jetbrains.python.requirements.UnsatisfiedRequirementInspection"/>
 
@@ -419,7 +425,7 @@ The Python plug-in provides smart editing for Python scripts. The feature set of
                         serviceImplementation="com.jetbrains.python.codeInsight.PyCustomMemberProviderImpl"/>
 
     <projectService serviceInterface="com.jetbrains.python.packaging.management.PythonPackageManagerService"
-                        serviceImplementation="com.jetbrains.python.packaging.management.PythonPackageManagerServiceImpl"/>
+                    serviceImplementation="com.jetbrains.python.packaging.management.PythonPackageManagerServiceImpl"/>
 
     <qualifiedNameProvider implementation="com.jetbrains.python.actions.PyQualifiedNameProvider"/>
 
@@ -480,12 +486,16 @@ The Python plug-in provides smart editing for Python scripts. The feature set of
     <registryKey defaultValue="30" description="Max attempts to connect to remote debugger server"
                  restartRequired="false" key="python.debugger.remote.connect.max.attempts"/>
 
+    <registryKey defaultValue="false" description="Don't run `lock` before listing dependencies when using Poetry"
+                 restartRequired="false" key="python.poetry.list.packages.without.lock"/>
+
     <!-- typing -->
     <multiHostInjector implementation="com.jetbrains.python.codeInsight.typing.PyTypingAnnotationInjector"/>
 
     <codeInsight.lineMarkerProvider language="Python" implementationClass="com.jetbrains.python.pyi.PyiRelatedItemLineMarkerProvider"/>
 
-    <refactoring.invertBoolean language="Python" implementationClass="com.jetbrains.python.refactoring.invertBoolean.PyInvertBooleanDelegate"/>
+    <refactoring.invertBoolean language="Python"
+                               implementationClass="com.jetbrains.python.refactoring.invertBoolean.PyInvertBooleanDelegate"/>
 
     <!--folding-->
     <codeFoldingOptionsProvider instance="com.jetbrains.python.PythonFoldingOptionsProvider"/>
@@ -524,8 +534,10 @@ The Python plug-in provides smart editing for Python scripts. The feature set of
     <statistics.projectUsagesCollector implementation="com.jetbrains.python.statistics.PyCompatibilityInspectionCollector"/>
     <statistics.counterUsagesCollector implementationClass="com.jetbrains.python.namespacePackages.PyNamespacePackagesStatisticsCollector"/>
     <statistics.counterUsagesCollector implementationClass="com.jetbrains.python.codeInsight.codeVision.PyCodeVisionUsageCollector"/>
-    <statistics.counterUsagesCollector implementationClass="com.jetbrains.python.newProjectWizard.collector.PythonNewProjectWizardCollector"/>
-    <statistics.validation.customValidationRule implementation="com.jetbrains.python.newProjectWizard.collector.PyProjectTypeValidationRule"/>
+    <statistics.counterUsagesCollector
+      implementationClass="com.jetbrains.python.newProjectWizard.collector.PythonNewProjectWizardCollector"/>
+    <statistics.validation.customValidationRule
+      implementation="com.jetbrains.python.newProjectWizard.collector.PyProjectTypeValidationRule"/>
     <statistics.counterUsagesCollector implementationClass="com.jetbrains.python.sdk.add.collector.PythonNewInterpreterAddedCollector"/>
     <statistics.counterUsagesCollector implementationClass="com.jetbrains.python.run.runAnything.PyRunAnythingCollector"/>
     <statistics.counterUsagesCollector implementationClass="com.jetbrains.python.debugger.statistics.PyDataViewerCollector"/>
diff --git a/python/src/com/jetbrains/python/sdk/poetry/PoetryCommandExecutor.kt b/python/src/com/jetbrains/python/sdk/poetry/PoetryCommandExecutor.kt
index f2ba93e87f4f..d0d59c3a7362 100644
--- a/python/src/com/jetbrains/python/sdk/poetry/PoetryCommandExecutor.kt
+++ b/python/src/com/jetbrains/python/sdk/poetry/PoetryCommandExecutor.kt
@@ -12,6 +12,7 @@ import com.intellij.openapi.ui.ValidationInfo
 import com.intellij.openapi.util.NlsSafe
 import com.intellij.openapi.util.SystemInfo
 import com.intellij.openapi.util.io.FileUtil
+import com.intellij.openapi.util.registry.Registry
 import com.intellij.platform.ide.progress.withBackgroundProgress
 import com.intellij.platform.util.progress.reportSequentialProgress
 import com.intellij.python.community.impl.poetry.poetryPath
@@ -29,10 +30,10 @@ import com.jetbrains.python.pathValidation.ValidationRequest
 import com.jetbrains.python.pathValidation.validateExecutableFile
 import com.jetbrains.python.sdk.*
 import com.jetbrains.python.venvReader.VirtualEnvReader
+import io.github.z4kn4fein.semver.Version
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.launch
 import kotlinx.coroutines.withContext
-import io.github.z4kn4fein.semver.Version
 import io.github.z4kn4fein.semver.toVersion
 import org.jetbrains.annotations.ApiStatus.Internal
 import org.jetbrains.annotations.NonNls
@@ -93,7 +94,8 @@ suspend fun validatePoetryExecutable(poetryExecutable: Path?): ValidationInfo? =
  * 1. `poetry env use [sdk]`
  * 2. `poetry [args]`
  */
-internal suspend fun runPoetryWithSdk(sdk: Sdk, vararg args: String): Result<String> {
+@Internal
+suspend fun runPoetryWithSdk(sdk: Sdk, vararg args: String): Result<String> {
   val projectPath = sdk.associatedModulePath?.let { Path.of(it) } ?: return Result.failure(poetryNotFoundException) // Choose a correct sdk
   return reportSequentialProgress(2) { reporter ->
     reporter.itemStep {
@@ -219,7 +221,7 @@ suspend fun poetryListPackages(sdk: Sdk): Result<Pair<List<PyPackage>, List<PyRe
   val version = getPoetryVersion()?.toVersion()
 
   // Ensure that the lock file is up to date.
-  if (!checkLock(sdk, version)) {
+  if (!Registry.get("python.poetry.list.packages.without.lock").asBoolean() && !checkLock(sdk, version)) {
     fixLock(sdk, version).getOrElse {
       return Result.failure(it)
     }
@@ -258,7 +260,7 @@ suspend fun fixLock(sdk: Sdk, version: Version?): Result<String> {
 
 @Internal
 fun parsePoetryInstallDryRun(input: String): Pair<List<PyPackage>, List<PyRequirement>> {
-  val installedLines = listOf("Already installed", "Skipping", "Updating")
+  val installedLines = listOf("Already installed", "Skipping", "Updating", "Downgrading")
 
   fun getNameAndVersion(line: String): Triple<String, String, String> {
     return line.split(" ").let {