diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 1b732171..268d09cf 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -14,8 +14,8 @@ concurrency:
   cancel-in-progress: true
 # Keep versions in sync with README
 env:
-  SWIFTLINT_VERSION: 0.59.1
-  SWIFTFORMAT_VERSION: 0.56.4
+  SWIFTLINT_VERSION: 0.61.0
+  SWIFTFORMAT_VERSION: 0.58.3
   SWIFT_HOMOMORPHIC_ENCRYPTION_ENABLE_BENCHMARKING: 1
 jobs:
   soundness:
diff --git a/README.md b/README.md
index 8a54367a..b8b6e246 100644
--- a/README.md
+++ b/README.md
@@ -153,11 +153,11 @@ We'd like this package to quickly embrace Swift language and toolchain improveme
 ## Developing Swift Homomorphic Encryption
 ### Dependencies
 Developing Swift Homomorphic Encryption requires:
-* [Nick Lockwood SwiftFormat](https://github.com/nicklockwood/SwiftFormat), 0.56.4
+* [Nick Lockwood SwiftFormat](https://github.com/nicklockwood/SwiftFormat), 0.58.3
 * [pre-commit](https://pre-commit.com)
 * [swift-format](https://github.com/swiftlang/swift-format), 600.0.0
 * [swift-protobuf](https://github.com/apple/swift-protobuf), 1.31.1
-* [SwiftLint](https://github.com/realm/SwiftLint), 0.59.1
+* [SwiftLint](https://github.com/realm/SwiftLint), 0.61.0
 
 ### Building
 You can build Swift Homomorphic Encryption either via Xcode or via command line in a terminal.
diff --git a/Sources/_TestUtilities/PnnsUtilities/PlaintextMatrixTests.swift b/Sources/_TestUtilities/PnnsUtilities/PlaintextMatrixTests.swift
index f54a26d6..4d1df8f3 100644
--- a/Sources/_TestUtilities/PnnsUtilities/PlaintextMatrixTests.swift
+++ b/Sources/_TestUtilities/PnnsUtilities/PlaintextMatrixTests.swift
@@ -50,13 +50,15 @@ extension PrivateNearestNeighborSearchUtil {
                 #expect(throws: Never.self) { try PlaintextMatrix<Scheme, Coeff>(
                     dimensions: dims,
                     packing: packing,
-                    plaintexts: [plaintext, plaintext]) }
+                    plaintexts: [plaintext, plaintext])
+                }
 
                 // Not enough plaintexts
                 #expect(throws: (any Error).self) { try PlaintextMatrix<Scheme, Coeff>(
                     dimensions: dims,
                     packing: packing,
-                    plaintexts: []) }
+                    plaintexts: [])
+                }
                 // Plaintexts from different contexts
                 do {
                     let diffRlweParams = rlweParams == PredefinedRlweParameters
@@ -73,7 +75,8 @@ extension PrivateNearestNeighborSearchUtil {
                     #expect(throws: (any Error).self) { try PlaintextMatrix<Scheme, Coeff>(
                         dimensions: dims,
                         packing: packing,
-                        plaintexts: [plaintext, diffPlaintext]) }
+                        plaintexts: [plaintext, diffPlaintext])
+                    }
                 }
             }
             for rlweParams in PredefinedRlweParameters.allCases where rlweParams.supportsScalar(Scheme.Scalar.self) {
@@ -101,7 +104,8 @@ extension PrivateNearestNeighborSearchUtil {
                     context: context,
                     dimensions: wrongDims,
                     packing: packing,
-                    values: values) }
+                    values: values)
+                }
             }
             // Too many columns
             do {
@@ -110,7 +114,8 @@ extension PrivateNearestNeighborSearchUtil {
                     context: context,
                     dimensions: dims,
                     packing: packing,
-                    values: values) }
+                    values: values)
+                }
             }
         }