diff --git a/package-lock.json b/package-lock.json
index b883795..050a1b7 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -34,8 +34,8 @@
         "remark": "^14.0.2",
         "remark-wiki-link": "^0.0.4",
         "source-map-support": "^0.5.12",
-        "ts-jest": "^29.1.4",
-        "typescript": "^3.8.3",
+        "ts-jest": "^29.2.2",
+        "typescript": "^5.5.3",
         "unified": "^9.0.0",
         "unist-util-find": "^1.0.2",
         "unist-util-visit": "^2.0.2"
@@ -2869,6 +2869,12 @@
         "node": ">=4"
       }
     },
+    "node_modules/async": {
+      "version": "3.2.5",
+      "resolved": "https://registry.npmjs.org/async/-/async-3.2.5.tgz",
+      "integrity": "sha512-baNZyqaaLhyLVKm/DlvdW051MSgO6b8eVfIezl9E5PqWxFgzLm/wQntEW4zOytVburDEr0JlALEpdOFwvErLsg==",
+      "dev": true
+    },
     "node_modules/azure-devops-node-api": {
       "version": "11.2.0",
       "resolved": "https://registry.npmjs.org/azure-devops-node-api/-/azure-devops-node-api-11.2.0.tgz",
@@ -3854,6 +3860,21 @@
         "url": "https://github.com/fb55/domutils?sponsor=1"
       }
     },
+    "node_modules/ejs": {
+      "version": "3.1.10",
+      "resolved": "https://registry.npmjs.org/ejs/-/ejs-3.1.10.tgz",
+      "integrity": "sha512-UeJmFfOrAQS8OJWPZ4qtgHyWExa088/MtK5UEyoJGFH67cDEXkZSviOiKRCZ4Xij0zxI3JECgYs3oKx+AizQBA==",
+      "dev": true,
+      "dependencies": {
+        "jake": "^10.8.5"
+      },
+      "bin": {
+        "ejs": "bin/cli.js"
+      },
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
     "node_modules/electron-to-chromium": {
       "version": "1.4.802",
       "resolved": "https://registry.npmjs.org/electron-to-chromium/-/electron-to-chromium-1.4.802.tgz",
@@ -4343,6 +4364,36 @@
         "node": ">=4"
       }
     },
+    "node_modules/filelist": {
+      "version": "1.0.4",
+      "resolved": "https://registry.npmjs.org/filelist/-/filelist-1.0.4.tgz",
+      "integrity": "sha512-w1cEuf3S+DrLCQL7ET6kz+gmlJdbq9J7yXCSjK/OZCPA+qEN1WyF4ZAf0YYJa4/shHJra2t/d/r8SV4Ji+x+8Q==",
+      "dev": true,
+      "dependencies": {
+        "minimatch": "^5.0.1"
+      }
+    },
+    "node_modules/filelist/node_modules/brace-expansion": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-2.0.1.tgz",
+      "integrity": "sha512-XnAIvQ8eM+kC6aULx6wuQiwVsnzsi9d3WxzV3FpWTGA19F621kwdbsAcFKXgKUHZWsy+mY6iL1sHTxWEFCytDA==",
+      "dev": true,
+      "dependencies": {
+        "balanced-match": "^1.0.0"
+      }
+    },
+    "node_modules/filelist/node_modules/minimatch": {
+      "version": "5.1.6",
+      "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-5.1.6.tgz",
+      "integrity": "sha512-lKwV/1brpG6mBUFHtb7NUmtABCb2WZZmm2wNiOA5hAb8VdCS4B3dtMWyvcoViccwAW/COERjXLt0zP1zXUN26g==",
+      "dev": true,
+      "dependencies": {
+        "brace-expansion": "^2.0.1"
+      },
+      "engines": {
+        "node": ">=10"
+      }
+    },
     "node_modules/fill-range": {
       "version": "7.1.1",
       "resolved": "https://registry.npmjs.org/fill-range/-/fill-range-7.1.1.tgz",
@@ -5115,6 +5166,94 @@
         "node": ">=8"
       }
     },
+    "node_modules/jake": {
+      "version": "10.9.1",
+      "resolved": "https://registry.npmjs.org/jake/-/jake-10.9.1.tgz",
+      "integrity": "sha512-61btcOHNnLnsOdtLgA5efqQWjnSi/vow5HbI7HMdKKWqvrKR1bLK3BPlJn9gcSaP2ewuamUSMB5XEy76KUIS2w==",
+      "dev": true,
+      "dependencies": {
+        "async": "^3.2.3",
+        "chalk": "^4.0.2",
+        "filelist": "^1.0.4",
+        "minimatch": "^3.1.2"
+      },
+      "bin": {
+        "jake": "bin/cli.js"
+      },
+      "engines": {
+        "node": ">=10"
+      }
+    },
+    "node_modules/jake/node_modules/ansi-styles": {
+      "version": "4.3.0",
+      "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-4.3.0.tgz",
+      "integrity": "sha512-zbB9rCJAT1rbjiVDb2hqKFHNYLxgtk8NURxZ3IZwD3F6NtxbXZQCnnSi1Lkx+IDohdPlFp222wVALIheZJQSEg==",
+      "dev": true,
+      "dependencies": {
+        "color-convert": "^2.0.1"
+      },
+      "engines": {
+        "node": ">=8"
+      },
+      "funding": {
+        "url": "https://github.com/chalk/ansi-styles?sponsor=1"
+      }
+    },
+    "node_modules/jake/node_modules/chalk": {
+      "version": "4.1.2",
+      "resolved": "https://registry.npmjs.org/chalk/-/chalk-4.1.2.tgz",
+      "integrity": "sha512-oKnbhFyRIXpUuez8iBMmyEa4nbj4IOQyuhc/wy9kY7/WVPcwIO9VA668Pu8RkO7+0G76SLROeyw9CpQ061i4mA==",
+      "dev": true,
+      "dependencies": {
+        "ansi-styles": "^4.1.0",
+        "supports-color": "^7.1.0"
+      },
+      "engines": {
+        "node": ">=10"
+      },
+      "funding": {
+        "url": "https://github.com/chalk/chalk?sponsor=1"
+      }
+    },
+    "node_modules/jake/node_modules/color-convert": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/color-convert/-/color-convert-2.0.1.tgz",
+      "integrity": "sha512-RRECPsj7iu/xb5oKYcsFHSppFNnsj/52OVTRKb4zP5onXwVF3zVmmToNcOfGC+CRDpfK/U584fMg38ZHCaElKQ==",
+      "dev": true,
+      "dependencies": {
+        "color-name": "~1.1.4"
+      },
+      "engines": {
+        "node": ">=7.0.0"
+      }
+    },
+    "node_modules/jake/node_modules/color-name": {
+      "version": "1.1.4",
+      "resolved": "https://registry.npmjs.org/color-name/-/color-name-1.1.4.tgz",
+      "integrity": "sha512-dOy+3AuW3a2wNbZHIuMZpTcgjGuLU/uBL/ubcZF9OXbDo8ff4O8yVp5Bf0efS8uEoYo5q4Fx7dY9OgQGXgAsQA==",
+      "dev": true
+    },
+    "node_modules/jake/node_modules/has-flag": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/has-flag/-/has-flag-4.0.0.tgz",
+      "integrity": "sha512-EykJT/Q1KjTWctppgIAgfSO0tKVuZUjhgMr17kqTumMl6Afv3EISleU7qZUzoXDFTAHTDC4NOoG/ZxU3EvlMPQ==",
+      "dev": true,
+      "engines": {
+        "node": ">=8"
+      }
+    },
+    "node_modules/jake/node_modules/supports-color": {
+      "version": "7.2.0",
+      "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-7.2.0.tgz",
+      "integrity": "sha512-qpCAvRl9stuOHveKsn7HncJRvv501qIacKzQlO/+Lwxc9+0q2wLyv4Dfvt80/DPn2pqOBsJdDiogXGR9+OvwRw==",
+      "dev": true,
+      "dependencies": {
+        "has-flag": "^4.0.0"
+      },
+      "engines": {
+        "node": ">=8"
+      }
+    },
     "node_modules/jest": {
       "version": "29.7.0",
       "resolved": "https://registry.npmjs.org/jest/-/jest-29.7.0.tgz",
@@ -9899,12 +10038,13 @@
       }
     },
     "node_modules/ts-jest": {
-      "version": "29.1.4",
-      "resolved": "https://registry.npmjs.org/ts-jest/-/ts-jest-29.1.4.tgz",
-      "integrity": "sha512-YiHwDhSvCiItoAgsKtoLFCuakDzDsJ1DLDnSouTaTmdOcOwIkSzbLXduaQ6M5DRVhuZC/NYaaZ/mtHbWMv/S6Q==",
+      "version": "29.2.2",
+      "resolved": "https://registry.npmjs.org/ts-jest/-/ts-jest-29.2.2.tgz",
+      "integrity": "sha512-sSW7OooaKT34AAngP6k1VS669a0HdLxkQZnlC7T76sckGCokXFnvJ3yRlQZGRTAoV5K19HfSgCiSwWOSIfcYlg==",
       "dev": true,
       "dependencies": {
         "bs-logger": "0.x",
+        "ejs": "^3.0.0",
         "fast-json-stable-stringify": "2.x",
         "jest-util": "^29.0.0",
         "json5": "^2.2.3",
@@ -10042,16 +10182,16 @@
       }
     },
     "node_modules/typescript": {
-      "version": "3.9.2",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.9.2.tgz",
-      "integrity": "sha512-q2ktq4n/uLuNNShyayit+DTobV2ApPEo/6so68JaD5ojvc/6GClBipedB9zNWYxRSAlZXAe405Rlijzl6qDiSw==",
+      "version": "5.5.3",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.5.3.tgz",
+      "integrity": "sha512-/hreyEujaB0w76zKo6717l3L0o/qEUtRgdvUBvlkhoWeOVMjMuHNHk0BRBzikzuGDqNmPQbg5ifMEqsHLiIUcQ==",
       "dev": true,
       "bin": {
         "tsc": "bin/tsc",
         "tsserver": "bin/tsserver"
       },
       "engines": {
-        "node": ">=4.2.0"
+        "node": ">=14.17"
       }
     },
     "node_modules/uc.micro": {
@@ -12803,6 +12943,12 @@
       "integrity": "sha512-+Ryf6g3BKoRc7jfp7ad8tM4TtMiaWvbF/1/sQcZPkkS7ag3D5nMBCe2UfOTONtAkaG0tO0ij3C5Lwmf1EiyjHg==",
       "dev": true
     },
+    "async": {
+      "version": "3.2.5",
+      "resolved": "https://registry.npmjs.org/async/-/async-3.2.5.tgz",
+      "integrity": "sha512-baNZyqaaLhyLVKm/DlvdW051MSgO6b8eVfIezl9E5PqWxFgzLm/wQntEW4zOytVburDEr0JlALEpdOFwvErLsg==",
+      "dev": true
+    },
     "azure-devops-node-api": {
       "version": "11.2.0",
       "resolved": "https://registry.npmjs.org/azure-devops-node-api/-/azure-devops-node-api-11.2.0.tgz",
@@ -13507,6 +13653,15 @@
         "domhandler": "^5.0.1"
       }
     },
+    "ejs": {
+      "version": "3.1.10",
+      "resolved": "https://registry.npmjs.org/ejs/-/ejs-3.1.10.tgz",
+      "integrity": "sha512-UeJmFfOrAQS8OJWPZ4qtgHyWExa088/MtK5UEyoJGFH67cDEXkZSviOiKRCZ4Xij0zxI3JECgYs3oKx+AizQBA==",
+      "dev": true,
+      "requires": {
+        "jake": "^10.8.5"
+      }
+    },
     "electron-to-chromium": {
       "version": "1.4.802",
       "resolved": "https://registry.npmjs.org/electron-to-chromium/-/electron-to-chromium-1.4.802.tgz",
@@ -13885,6 +14040,35 @@
         "flat-cache": "^2.0.1"
       }
     },
+    "filelist": {
+      "version": "1.0.4",
+      "resolved": "https://registry.npmjs.org/filelist/-/filelist-1.0.4.tgz",
+      "integrity": "sha512-w1cEuf3S+DrLCQL7ET6kz+gmlJdbq9J7yXCSjK/OZCPA+qEN1WyF4ZAf0YYJa4/shHJra2t/d/r8SV4Ji+x+8Q==",
+      "dev": true,
+      "requires": {
+        "minimatch": "^5.0.1"
+      },
+      "dependencies": {
+        "brace-expansion": {
+          "version": "2.0.1",
+          "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-2.0.1.tgz",
+          "integrity": "sha512-XnAIvQ8eM+kC6aULx6wuQiwVsnzsi9d3WxzV3FpWTGA19F621kwdbsAcFKXgKUHZWsy+mY6iL1sHTxWEFCytDA==",
+          "dev": true,
+          "requires": {
+            "balanced-match": "^1.0.0"
+          }
+        },
+        "minimatch": {
+          "version": "5.1.6",
+          "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-5.1.6.tgz",
+          "integrity": "sha512-lKwV/1brpG6mBUFHtb7NUmtABCb2WZZmm2wNiOA5hAb8VdCS4B3dtMWyvcoViccwAW/COERjXLt0zP1zXUN26g==",
+          "dev": true,
+          "requires": {
+            "brace-expansion": "^2.0.1"
+          }
+        }
+      }
+    },
     "fill-range": {
       "version": "7.1.1",
       "resolved": "https://registry.npmjs.org/fill-range/-/fill-range-7.1.1.tgz",
@@ -14465,6 +14649,69 @@
         "istanbul-lib-report": "^3.0.0"
       }
     },
+    "jake": {
+      "version": "10.9.1",
+      "resolved": "https://registry.npmjs.org/jake/-/jake-10.9.1.tgz",
+      "integrity": "sha512-61btcOHNnLnsOdtLgA5efqQWjnSi/vow5HbI7HMdKKWqvrKR1bLK3BPlJn9gcSaP2ewuamUSMB5XEy76KUIS2w==",
+      "dev": true,
+      "requires": {
+        "async": "^3.2.3",
+        "chalk": "^4.0.2",
+        "filelist": "^1.0.4",
+        "minimatch": "^3.1.2"
+      },
+      "dependencies": {
+        "ansi-styles": {
+          "version": "4.3.0",
+          "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-4.3.0.tgz",
+          "integrity": "sha512-zbB9rCJAT1rbjiVDb2hqKFHNYLxgtk8NURxZ3IZwD3F6NtxbXZQCnnSi1Lkx+IDohdPlFp222wVALIheZJQSEg==",
+          "dev": true,
+          "requires": {
+            "color-convert": "^2.0.1"
+          }
+        },
+        "chalk": {
+          "version": "4.1.2",
+          "resolved": "https://registry.npmjs.org/chalk/-/chalk-4.1.2.tgz",
+          "integrity": "sha512-oKnbhFyRIXpUuez8iBMmyEa4nbj4IOQyuhc/wy9kY7/WVPcwIO9VA668Pu8RkO7+0G76SLROeyw9CpQ061i4mA==",
+          "dev": true,
+          "requires": {
+            "ansi-styles": "^4.1.0",
+            "supports-color": "^7.1.0"
+          }
+        },
+        "color-convert": {
+          "version": "2.0.1",
+          "resolved": "https://registry.npmjs.org/color-convert/-/color-convert-2.0.1.tgz",
+          "integrity": "sha512-RRECPsj7iu/xb5oKYcsFHSppFNnsj/52OVTRKb4zP5onXwVF3zVmmToNcOfGC+CRDpfK/U584fMg38ZHCaElKQ==",
+          "dev": true,
+          "requires": {
+            "color-name": "~1.1.4"
+          }
+        },
+        "color-name": {
+          "version": "1.1.4",
+          "resolved": "https://registry.npmjs.org/color-name/-/color-name-1.1.4.tgz",
+          "integrity": "sha512-dOy+3AuW3a2wNbZHIuMZpTcgjGuLU/uBL/ubcZF9OXbDo8ff4O8yVp5Bf0efS8uEoYo5q4Fx7dY9OgQGXgAsQA==",
+          "dev": true
+        },
+        "has-flag": {
+          "version": "4.0.0",
+          "resolved": "https://registry.npmjs.org/has-flag/-/has-flag-4.0.0.tgz",
+          "integrity": "sha512-EykJT/Q1KjTWctppgIAgfSO0tKVuZUjhgMr17kqTumMl6Afv3EISleU7qZUzoXDFTAHTDC4NOoG/ZxU3EvlMPQ==",
+          "dev": true
+        },
+        "supports-color": {
+          "version": "7.2.0",
+          "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-7.2.0.tgz",
+          "integrity": "sha512-qpCAvRl9stuOHveKsn7HncJRvv501qIacKzQlO/+Lwxc9+0q2wLyv4Dfvt80/DPn2pqOBsJdDiogXGR9+OvwRw==",
+          "dev": true,
+          "requires": {
+            "has-flag": "^4.0.0"
+          }
+        }
+      }
+    },
     "jest": {
       "version": "29.7.0",
       "resolved": "https://registry.npmjs.org/jest/-/jest-29.7.0.tgz",
@@ -17988,12 +18235,13 @@
       }
     },
     "ts-jest": {
-      "version": "29.1.4",
-      "resolved": "https://registry.npmjs.org/ts-jest/-/ts-jest-29.1.4.tgz",
-      "integrity": "sha512-YiHwDhSvCiItoAgsKtoLFCuakDzDsJ1DLDnSouTaTmdOcOwIkSzbLXduaQ6M5DRVhuZC/NYaaZ/mtHbWMv/S6Q==",
+      "version": "29.2.2",
+      "resolved": "https://registry.npmjs.org/ts-jest/-/ts-jest-29.2.2.tgz",
+      "integrity": "sha512-sSW7OooaKT34AAngP6k1VS669a0HdLxkQZnlC7T76sckGCokXFnvJ3yRlQZGRTAoV5K19HfSgCiSwWOSIfcYlg==",
       "dev": true,
       "requires": {
         "bs-logger": "0.x",
+        "ejs": "^3.0.0",
         "fast-json-stable-stringify": "2.x",
         "jest-util": "^29.0.0",
         "json5": "^2.2.3",
@@ -18077,9 +18325,9 @@
       }
     },
     "typescript": {
-      "version": "3.9.2",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.9.2.tgz",
-      "integrity": "sha512-q2ktq4n/uLuNNShyayit+DTobV2ApPEo/6so68JaD5ojvc/6GClBipedB9zNWYxRSAlZXAe405Rlijzl6qDiSw==",
+      "version": "5.5.3",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.5.3.tgz",
+      "integrity": "sha512-/hreyEujaB0w76zKo6717l3L0o/qEUtRgdvUBvlkhoWeOVMjMuHNHk0BRBzikzuGDqNmPQbg5ifMEqsHLiIUcQ==",
       "dev": true
     },
     "uc.micro": {
diff --git a/package.json b/package.json
index 27a8a4e..a8829f8 100644
--- a/package.json
+++ b/package.json
@@ -230,8 +230,8 @@
     "remark": "^14.0.2",
     "remark-wiki-link": "^0.0.4",
     "source-map-support": "^0.5.12",
-    "ts-jest": "^29.1.4",
-    "typescript": "^3.8.3",
+    "ts-jest": "^29.2.2",
+    "typescript": "^5.5.3",
     "unified": "^9.0.0",
     "unist-util-find": "^1.0.2",
     "unist-util-visit": "^2.0.2",
diff --git a/src/BacklinksTreeDataProvider.ts b/src/BacklinksTreeDataProvider.ts
index 77a7b84..3191c3c 100644
--- a/src/BacklinksTreeDataProvider.ts
+++ b/src/BacklinksTreeDataProvider.ts
@@ -126,6 +126,10 @@ class BacklinkItem extends vscode.TreeItem {
   ) {
     super(label, collapsibleState);
     this.filename = filename || '';
+    this.command = this._command();
+    this.tooltip = this._tooltip();
+    this.description = this._description();
+    this.iconPath = this._iconPath();
   }
 
   // return the 1 collapsible Item for each file
@@ -145,7 +149,7 @@ class BacklinkItem extends vscode.TreeItem {
     return new BacklinkItem(label, cs, undefined, location, filename);
   }
 
-  get command(): vscode.Command | undefined {
+  private _command(): vscode.Command | undefined {
     if (this.location) {
       return {
         command: 'vscode.open',
@@ -161,7 +165,7 @@ class BacklinkItem extends vscode.TreeItem {
     }
   }
 
-  get tooltip(): string {
+  private _tooltip(): string {
     return [this.filename, this.lineText, this.description].filter(Boolean).join(': ');
   }
 
@@ -171,7 +175,7 @@ class BacklinkItem extends vscode.TreeItem {
     }
   }
 
-  get description(): string {
+  private _description(): string {
     let d = ``;
     if (this.location) {
       let lines = (fs.readFileSync(this.location?.uri.fsPath) || '').toString().split(/\r?\n/);
@@ -190,7 +194,7 @@ class BacklinkItem extends vscode.TreeItem {
     return d;
   }
 
-  get iconPath(): vscode.ThemeIcon | undefined {
+  private _iconPath(): vscode.ThemeIcon | undefined {
     // to leave more room for the ref text,
     // don't use an icon for each line
     return this.location ? undefined : new vscode.ThemeIcon('references');