diff --git a/lib/modules/manager/poetry/extract.spec.ts b/lib/modules/manager/poetry/extract.spec.ts
index a1a459499491b6..56fca72715c412 100644
--- a/lib/modules/manager/poetry/extract.spec.ts
+++ b/lib/modules/manager/poetry/extract.spec.ts
@@ -1,5 +1,7 @@
+import { codeBlock } from 'common-tags';
 import { Fixtures } from '../../../../test/fixtures';
 import { fs } from '../../../../test/util';
+import { GithubTagsDatasource } from '../../datasource/github-tags';
 import { extractPackageFile } from '.';
 
 jest.mock('../../../util/fs');
@@ -141,8 +143,17 @@ describe('modules/manager/poetry/extract', () => {
     });
 
     it('extracts dependencies from dependency groups', async () => {
-      const content =
-        '[tool.poetry.dependencies]\ndep = "^2.0"\n\n[tool.poetry.group.dev.dependencies]\ndev_dep = "^3.0"\n\n[tool.poetry.group.typing.dependencies]\ntyping_dep = "^4.0"';
+      const content = codeBlock`
+        [tool.poetry.dependencies]
+        dep = "^2.0"
+
+
+        [tool.poetry.group.dev.dependencies]
+        dev_dep = "^3.0"
+
+        [tool.poetry.group.typing.dependencies]
+        typing_dep = "^4.0"
+      `;
       const res = await extractPackageFile(content, filename);
       expect(res?.deps).toMatchObject([
         {
@@ -177,9 +188,42 @@ describe('modules/manager/poetry/extract', () => {
       });
     });
 
+    it('parses github dependencies tags on ssh urls', async () => {
+      const content = codeBlock`
+        [tool.poetry.dependencies]
+        fastapi = {git = "git@github.com:tiangolo/fastapi.git", tag="1.2.3"}
+        werkzeug = ">=0.14"
+      `;
+      const res = (await extractPackageFile(content, filename))!.deps;
+      expect(res[0].depName).toBe('fastapi');
+      expect(res[0].packageName).toBe('tiangolo/fastapi');
+      expect(res[0].currentValue).toBe('1.2.3');
+      expect(res[0].skipReason).toBeUndefined();
+      expect(res[0].datasource).toBe(GithubTagsDatasource.id);
+      expect(res).toHaveLength(2);
+    });
+
+    it('parses github dependencies tags on http urls', async () => {
+      const content = codeBlock`
+        [tool.poetry.dependencies]
+        fastapi = {git = "https://github.com/tiangolo/fastapi.git", tag="1.2.3"}
+        werkzeug = ">=0.14"
+      `;
+      const res = (await extractPackageFile(content, filename))!.deps;
+      expect(res[0].depName).toBe('fastapi');
+      expect(res[0].packageName).toBe('tiangolo/fastapi');
+      expect(res[0].currentValue).toBe('1.2.3');
+      expect(res[0].skipReason).toBeUndefined();
+      expect(res[0].datasource).toBe(GithubTagsDatasource.id);
+      expect(res).toHaveLength(2);
+    });
+
     it('skips git dependencies', async () => {
-      const content =
-        '[tool.poetry.dependencies]\r\nflask = {git = "https://github.com/pallets/flask.git"}\r\nwerkzeug = ">=0.14"';
+      const content = codeBlock`
+        [tool.poetry.dependencies]
+        flask = {git = "https://github.com/pallets/flask.git"}
+        werkzeug = ">=0.14"
+      `;
       const res = (await extractPackageFile(content, filename))!.deps;
       expect(res[0].depName).toBe('flask');
       expect(res[0].currentValue).toBeEmptyString();
@@ -188,8 +232,11 @@ describe('modules/manager/poetry/extract', () => {
     });
 
     it('skips git dependencies with version', async () => {
-      const content =
-        '[tool.poetry.dependencies]\r\nflask = {git = "https://github.com/pallets/flask.git", version="1.2.3"}\r\nwerkzeug = ">=0.14"';
+      const content = codeBlock`
+        [tool.poetry.dependencies]
+        flask = {git = "https://github.com/pallets/flask.git", version="1.2.3"}
+        werkzeug = ">=0.14"
+      `;
       const res = (await extractPackageFile(content, filename))!.deps;
       expect(res[0].depName).toBe('flask');
       expect(res[0].currentValue).toBe('1.2.3');
@@ -197,9 +244,24 @@ describe('modules/manager/poetry/extract', () => {
       expect(res).toHaveLength(2);
     });
 
+    it('skips git dependencies on tags that are not in github', async () => {
+      const content = codeBlock`
+        [tool.poetry.dependencies]
+        aws-sam = {git = "https://gitlab.com/gitlab-examples/aws-sam.git", tag="1.2.3"}
+      `;
+      const res = (await extractPackageFile(content, filename))!.deps;
+      expect(res[0].depName).toBe('aws-sam');
+      expect(res[0].currentValue).toBe('1.2.3');
+      expect(res[0].skipReason).toBe('git-dependency');
+      expect(res).toHaveLength(1);
+    });
+
     it('skips path dependencies', async () => {
-      const content =
-        '[tool.poetry.dependencies]\r\nflask = {path = "/some/path/"}\r\nwerkzeug = ">=0.14"';
+      const content = codeBlock`
+        [tool.poetry.dependencies]
+        flask = {path = "/some/path/"}
+        werkzeug = ">=0.14"
+      `;
       const res = (await extractPackageFile(content, filename))!.deps;
       expect(res[0].depName).toBe('flask');
       expect(res[0].currentValue).toBe('');
@@ -208,8 +270,11 @@ describe('modules/manager/poetry/extract', () => {
     });
 
     it('skips path dependencies with version', async () => {
-      const content =
-        '[tool.poetry.dependencies]\r\nflask = {path = "/some/path/", version = "1.2.3"}\r\nwerkzeug = ">=0.14"';
+      const content = codeBlock`
+        [tool.poetry.dependencies]
+        flask = {path = "/some/path/", version = "1.2.3"}
+        werkzeug = ">=0.14"
+      `;
       const res = (await extractPackageFile(content, filename))!.deps;
       expect(res[0].depName).toBe('flask');
       expect(res[0].currentValue).toBe('1.2.3');
diff --git a/lib/modules/manager/poetry/extract.ts b/lib/modules/manager/poetry/extract.ts
index ae9810dbc0e2fd..13daf4ace31a5f 100644
--- a/lib/modules/manager/poetry/extract.ts
+++ b/lib/modules/manager/poetry/extract.ts
@@ -7,7 +7,9 @@ import {
   localPathExists,
   readLocalFile,
 } from '../../../util/fs';
+import { parseGitUrl } from '../../../util/git/url';
 import { regEx } from '../../../util/regex';
+import { GithubTagsDatasource } from '../../datasource/github-tags';
 import { PypiDatasource } from '../../datasource/pypi';
 import * as pep440Versioning from '../../versioning/pep440';
 import * as poetryVersioning from '../../versioning/poetry';
@@ -56,12 +58,15 @@ function extractFromSection(
     }
 
     const pep503NormalizeRegex = regEx(/[-_.]+/g);
-    const packageName = depName
-      .toLowerCase()
-      .replace(pep503NormalizeRegex, '-');
+    let packageName = depName.toLowerCase().replace(pep503NormalizeRegex, '-');
     let skipReason: SkipReason | null = null;
     let currentValue = sectionContent[depName];
     let nestedVersion = false;
+    let datasource = PypiDatasource.id;
+    let lockedVersion: string | null = null;
+    if (packageName in poetryLockfile) {
+      lockedVersion = poetryLockfile[packageName];
+    }
     if (!is.string(currentValue)) {
       const version = currentValue.version;
       const path = currentValue.path;
@@ -76,8 +81,19 @@ function extractFromSection(
         currentValue = '';
         skipReason = 'path-dependency';
       } else if (git) {
-        currentValue = '';
-        skipReason = 'git-dependency';
+        if (currentValue.tag) {
+          currentValue = currentValue.tag;
+          datasource = GithubTagsDatasource.id;
+          const githubPackageName = extractGithubPackageName(git);
+          if (githubPackageName) {
+            packageName = githubPackageName;
+          } else {
+            skipReason = 'git-dependency';
+          }
+        } else {
+          currentValue = '';
+          skipReason = 'git-dependency';
+        }
       } else {
         currentValue = '';
         skipReason = 'multiple-constraint-dep';
@@ -88,10 +104,10 @@ function extractFromSection(
       depType,
       currentValue,
       managerData: { nestedVersion },
-      datasource: PypiDatasource.id,
+      datasource,
     };
-    if (packageName in poetryLockfile) {
-      dep.lockedVersion = poetryLockfile[packageName];
+    if (lockedVersion) {
+      dep.lockedVersion = lockedVersion;
     }
     if (depName !== packageName) {
       dep.packageName = packageName;
@@ -199,3 +215,11 @@ export async function extractPackageFile(
   }
   return res;
 }
+
+function extractGithubPackageName(url: string): string | null {
+  const parsedUrl = parseGitUrl(url);
+  if (parsedUrl.source !== 'github.com') {
+    return null;
+  }
+  return `${parsedUrl.owner}/${parsedUrl.name}`;
+}
diff --git a/lib/modules/manager/poetry/index.ts b/lib/modules/manager/poetry/index.ts
index 122ebb1d37a823..3655fea38af505 100644
--- a/lib/modules/manager/poetry/index.ts
+++ b/lib/modules/manager/poetry/index.ts
@@ -1,11 +1,15 @@
 import type { ProgrammingLanguage } from '../../../constants';
+import { GithubTagsDatasource } from '../../datasource/github-tags';
 import { PypiDatasource } from '../../datasource/pypi';
 
 export { extractPackageFile } from './extract';
 export { updateArtifacts } from './artifacts';
 export { updateLockedDependency } from './update-locked';
 
-export const supportedDatasources = [PypiDatasource.id];
+export const supportedDatasources = [
+  PypiDatasource.id,
+  GithubTagsDatasource.id,
+];
 
 export const language: ProgrammingLanguage = 'python';
 export const supportsLockFileMaintenance = true;
diff --git a/lib/modules/manager/poetry/types.ts b/lib/modules/manager/poetry/types.ts
index 935cd37436d9f9..6fa510ad515f9c 100644
--- a/lib/modules/manager/poetry/types.ts
+++ b/lib/modules/manager/poetry/types.ts
@@ -20,6 +20,7 @@ export interface PoetryFile {
 export interface PoetryDependency {
   path?: string;
   git?: string;
+  tag?: string;
   version?: string;
 }