diff --git a/backend/requirements.txt b/backend/requirements.txt
index 1539953..0503733 100644
--- a/backend/requirements.txt
+++ b/backend/requirements.txt
@@ -1,17 +1,18 @@
-fastapi==0.115.0
-uvicorn[standard]==0.30.6
-python-multipart==0.0.12
-numpy>=1.26
-scipy>=1.13
-astropy>=6.0
-astroquery>=0.4.7
-matplotlib>=3.8
-reportlab>=4.2
-pydantic>=2.0
-pytest>=8.0
+fastapi==0.141.1
+uvicorn[standard]==0.52.4
+python-multipart==0.0.32
+numpy>=2.0
+scipy>=1.14
+astropy>=7.0
+astroquery>=0.4.11
+matplotlib>=3.10
+reportlab>=4.4
+pydantic>=2.10
+pytest>=8.3
 # Microlensing (Module A) — PSPL fits use the closed form; MulensModel is
 # listed so higher-order effects (parallax, finite-source, binary lens) can
-# be dropped in without a re-install.
+# be dropped in without a re-install. The public Model API used here is
+# stable across 2.x and 3.x.
 MulensModel>=2.14; python_version >= "3.9"
 # Microlensing (Module B) — TESS RA/Dec → (sector, camera, ccd).
-tess-point>=0.9.0
+tess-point>=0.9.4
diff --git a/frontend/package.json b/frontend/package.json
index 2840f35..38ff7c8 100644
--- a/frontend/package.json
+++ b/frontend/package.json
@@ -9,17 +9,17 @@
     "preview": "vite preview --host 0.0.0.0 --port 4173"
   },
   "dependencies": {
-    "react": "^18.3.1",
-    "react-dom": "^18.3.1"
+    "react": "^19.2.0",
+    "react-dom": "^19.2.0"
   },
   "devDependencies": {
-    "@types/react": "^18.3.3",
-    "@types/react-dom": "^18.3.0",
-    "@vitejs/plugin-react": "^4.3.1",
+    "@types/react": "^19.2.0",
+    "@types/react-dom": "^19.2.0",
+    "@vitejs/plugin-react": "^6.1.1",
     "autoprefixer": "^10.4.20",
-    "postcss": "^8.4.45",
-    "tailwindcss": "^3.4.10",
-    "typescript": "^5.5.4",
-    "vite": "^5.4.6"
+    "postcss": "^8.5.0",
+    "tailwindcss": "^3.4.19",
+    "typescript": "^5.9.0",
+    "vite": "^7.3.0"
   }
 }
diff --git a/pios/requirements-pi.txt b/pios/requirements-pi.txt
index d749f38..c86b128 100644
--- a/pios/requirements-pi.txt
+++ b/pios/requirements-pi.txt
@@ -11,11 +11,11 @@
 # Pinned upper bounds keep import RAM predictable on 1 GB devices.
 
 # ---- Core (always needed) ---------------------------------------------
-numpy>=1.23,<3
-scipy>=1.10,<2
-astropy>=5.3,<8            # FITS reader + BLS + LombScargle + WCS
-matplotlib>=3.6,<4         # Agg + TkAgg backend, no Qt/Tk pip install
-reportlab>=3.6,<5          # Single-file, pure-Python PDF
+numpy>=1.26,<3
+scipy>=1.11,<2
+astropy>=6.0,<9            # FITS reader + BLS + LombScargle + WCS
+matplotlib>=3.7,<4         # Agg + TkAgg backend, no Qt/Tk pip install
+reportlab>=4.0,<6          # Single-file, pure-Python PDF
 
 # ---- Remote-service integrations (recommended — optional at runtime) --
 # astroquery drives MAST/TESScut, ExoFOP/TIC v8 catalog, Gaia DR3, SIMBAD,
@@ -28,4 +28,4 @@ astroquery>=0.4.7,<1
 # resolves (RA, Dec) → (sector, camera, ccd) for the microlensing
 # coverage tool. Coverage exits gracefully with a "no_tess_point" flag
 # per event when this isn't installed.
-tess-point>=0.9.0
+tess-point>=0.9.4