diff --git a/add-two-polynomials-represented-as-linked-lists/test.ts b/add-two-polynomials-represented-as-linked-lists/test.ts
index 83bdc920..b2e26843 100644
--- a/add-two-polynomials-represented-as-linked-lists/test.ts
+++ b/add-two-polynomials-represented-as-linked-lists/test.ts
@@ -1,4 +1,4 @@
-import { assertEquals } from "https://deno.land/std@0.172.0/testing/asserts.ts";
+import { assertEquals } from "https://deno.land/std@0.173.0/testing/asserts.ts";
 
 import { ArrayToPolyNode } from "./ArrayToPolyNode.ts";
 import addPoly from "./index.ts";
diff --git a/basic-calculator-iv/test.ts b/basic-calculator-iv/test.ts
index ed28e7dc..e6923800 100644
--- a/basic-calculator-iv/test.ts
+++ b/basic-calculator-iv/test.ts
@@ -1,4 +1,4 @@
-import { assertEquals } from "https://deno.land/std@0.172.0/testing/asserts.ts";
+import { assertEquals } from "https://deno.land/std@0.173.0/testing/asserts.ts";
 
 import basicCalculatorIV from "./index.ts";
 import { Poly } from "./Poly.ts";
diff --git a/booking-concert-tickets-in-groups/test.ts b/booking-concert-tickets-in-groups/test.ts
index 0178d11b..d6bb3ac7 100644
--- a/booking-concert-tickets-in-groups/test.ts
+++ b/booking-concert-tickets-in-groups/test.ts
@@ -1,4 +1,4 @@
-import { assertEquals } from "https://deno.land/std@0.172.0/testing/asserts.ts";
+import { assertEquals } from "https://deno.land/std@0.173.0/testing/asserts.ts";
 import { runScript } from "leetcode-class";
 
 import BookMyShow from "./index.ts";
diff --git a/brace-expansion-ii/test.ts b/brace-expansion-ii/test.ts
index 05309045..6f344931 100644
--- a/brace-expansion-ii/test.ts
+++ b/brace-expansion-ii/test.ts
@@ -1,4 +1,4 @@
-import { assertEquals } from "https://deno.land/std@0.172.0/testing/asserts.ts";
+import { assertEquals } from "https://deno.land/std@0.173.0/testing/asserts.ts";
 
 import braceExpansionII from "./index.ts";
 
diff --git a/brace-expansion/test.ts b/brace-expansion/test.ts
index 5d455340..d781730e 100644
--- a/brace-expansion/test.ts
+++ b/brace-expansion/test.ts
@@ -1,4 +1,4 @@
-import { assertEquals } from "https://deno.land/std@0.172.0/testing/asserts.ts";
+import { assertEquals } from "https://deno.land/std@0.173.0/testing/asserts.ts";
 
 import expand from "./index.ts";
 
diff --git a/construct-binary-search-tree-from-preorder-traversal/test.ts b/construct-binary-search-tree-from-preorder-traversal/test.ts
index e71dd8ee..a6fb278d 100644
--- a/construct-binary-search-tree-from-preorder-traversal/test.ts
+++ b/construct-binary-search-tree-from-preorder-traversal/test.ts
@@ -1,4 +1,4 @@
-import { assertEquals } from "https://deno.land/std@0.172.0/testing/asserts.ts";
+import { assertEquals } from "https://deno.land/std@0.173.0/testing/asserts.ts";
 
 import { TreeNodeLeetCodeFromJSON } from "../utils/TreeNodeLeetCodeParse.ts";
 import { TreeNodeLeetCodeToJSON } from "../utils/TreeNodeLeetCodeStringify.ts";
diff --git a/construct-binary-tree-from-string/test.ts b/construct-binary-tree-from-string/test.ts
index ffc507cc..31099ab1 100644
--- a/construct-binary-tree-from-string/test.ts
+++ b/construct-binary-tree-from-string/test.ts
@@ -1,4 +1,4 @@
-import { assertEquals } from "https://deno.land/std@0.172.0/testing/asserts.ts";
+import { assertEquals } from "https://deno.land/std@0.173.0/testing/asserts.ts";
 
 import str2tree from "./index.ts";
 
diff --git a/count-of-smaller-numbers-after-self/test.ts b/count-of-smaller-numbers-after-self/test.ts
index 7ad8326c..9cc8c799 100644
--- a/count-of-smaller-numbers-after-self/test.ts
+++ b/count-of-smaller-numbers-after-self/test.ts
@@ -1,4 +1,4 @@
-import { assertEquals } from "https://deno.land/std@0.172.0/testing/asserts.ts";
+import { assertEquals } from "https://deno.land/std@0.173.0/testing/asserts.ts";
 
 import countSmaller from "./index.ts";
 
diff --git a/delete-tree-nodes/test.ts b/delete-tree-nodes/test.ts
index 8968eec3..53dab79b 100644
--- a/delete-tree-nodes/test.ts
+++ b/delete-tree-nodes/test.ts
@@ -1,4 +1,4 @@
-import { assertEquals } from "https://deno.land/std@0.172.0/testing/asserts.ts";
+import { assertEquals } from "https://deno.land/std@0.173.0/testing/asserts.ts";
 
 import deleteTreeNodes from "./index.ts";
 
diff --git a/deps.ts b/deps.ts
index 14043680..4af16889 100644
--- a/deps.ts
+++ b/deps.ts
@@ -5,7 +5,7 @@ export {
     assertFalse,
     assertStrictEquals,
     equal,
-} from "https://deno.land/std@0.172.0/testing/asserts.ts";
+} from "https://deno.land/std@0.173.0/testing/asserts.ts";
 export { default as random } from "https://cdn.skypack.dev/lodash@4.17.21/random?dts";
 export { default as countBy } from "https://cdn.skypack.dev/lodash@4.17.21/countBy?dts";
 export { default as zip } from "https://cdn.skypack.dev/lodash@4.17.21/zip?dts";
@@ -14,12 +14,12 @@ export { default as uniqBy } from "https://cdn.skypack.dev/lodash@4.17.21/uniqBy
 export { default as max } from "https://cdn.skypack.dev/lodash@4.17.21/max?dts";
 export { default as sum } from "https://cdn.skypack.dev/lodash@4.17.21/sum?dts";
 export { default as intersection } from "https://cdn.skypack.dev/lodash@4.17.21/intersection?dts";
-import { BinaryHeap } from "https://deno.land/std@0.172.0/collections/binary_heap.ts";
+import { BinaryHeap } from "https://deno.land/std@0.173.0/collections/binary_heap.ts";
 export { BinaryHeap };
-export { walk } from "https://deno.land/std@0.172.0/fs/mod.ts";
-export { parse } from "https://deno.land/std@0.172.0/flags/mod.ts";
+export { walk } from "https://deno.land/std@0.173.0/fs/mod.ts";
+export { parse } from "https://deno.land/std@0.173.0/flags/mod.ts";
 export { combinations } from "https://deno.land/x/combinatorics@1.1.2/mod.ts";
-export { isIP } from "https://deno.land/std@0.172.0/node/internal/net.ts";
+export { isIP } from "https://deno.land/std@0.173.0/node/internal/net.ts";
 export { Heap } from "npm:@datastructures-js/heap@4.3.1";
 export {
     AvlTree,
@@ -31,9 +31,9 @@ export { default as groupBy } from "https://cdn.skypack.dev/lodash@4.17.21/group
 export {
     runScript,
     TreeNode,
-} from "https://esm.sh/@masx200/leetcode-class@1.2.7/";
+} from "https://esm.sh/@masx200/leetcode-class@undefined/";
 
-export type { WalkEntry } from "https://deno.land/std@0.172.0/fs/_util.ts";
+export type { WalkEntry } from "https://deno.land/std@0.173.0/fs/_util.ts";
 
 import memoize from "https://cdn.skypack.dev/lodash@4.17.21/memoize?dts";
 import AsyncLimiterClass, {
diff --git a/design-a-file-sharing-system/index.ts b/design-a-file-sharing-system/index.ts
index 20514eb8..a23277fd 100644
--- a/design-a-file-sharing-system/index.ts
+++ b/design-a-file-sharing-system/index.ts
@@ -65,4 +65,4 @@ export default class FileSharing {
         return usersList;
     }
 }
-import { BinaryHeap } from "https://deno.land/std@0.172.0/collections/binary_heap.ts";
+import { BinaryHeap } from "https://deno.land/std@0.173.0/collections/binary_heap.ts";
diff --git a/dinner-plate-stacks/RedBlackTree.ts b/dinner-plate-stacks/RedBlackTree.ts
index a6c4a5ce..6a7718b6 100644
--- a/dinner-plate-stacks/RedBlackTree.ts
+++ b/dinner-plate-stacks/RedBlackTree.ts
@@ -1,5 +1,5 @@
-import { RedBlackNode } from "https://deno.land/std@0.172.0/collections/red_black_node.ts";
-import { RedBlackTree } from "https://deno.land/std@0.172.0/collections/red_black_tree.ts";
+import { RedBlackNode } from "https://deno.land/std@0.173.0/collections/red_black_node.ts";
+import { RedBlackTree } from "https://deno.land/std@0.173.0/collections/red_black_tree.ts";
 
 export default class<T> extends RedBlackTree<T> {
     getRoot() {
diff --git a/dinner-plate-stacks/index.ts b/dinner-plate-stacks/index.ts
index 6d77fc09..107ff991 100644
--- a/dinner-plate-stacks/index.ts
+++ b/dinner-plate-stacks/index.ts
@@ -1,4 +1,4 @@
-import { ascend } from "https://deno.land/std@0.172.0/collections/binary_search_tree.ts";
+import { ascend } from "https://deno.land/std@0.173.0/collections/binary_search_tree.ts";
 
 import RedBlackTree from "./RedBlackTree.ts";
 import { reverseInOrderIterator } from "./RedBlackTree.ts";
diff --git a/find-the-city-with-the-smallest-number-of-neighbors-at-a-threshold-distance/findTheCity.ts b/find-the-city-with-the-smallest-number-of-neighbors-at-a-threshold-distance/findTheCity.ts
index 1eec66c9..c5878672 100644
--- a/find-the-city-with-the-smallest-number-of-neighbors-at-a-threshold-distance/findTheCity.ts
+++ b/find-the-city-with-the-smallest-number-of-neighbors-at-a-threshold-distance/findTheCity.ts
@@ -1,4 +1,4 @@
-import { BinaryHeap } from "https://deno.land/std@0.172.0/collections/binary_heap.ts";
+import { BinaryHeap } from "https://deno.land/std@0.173.0/collections/binary_heap.ts";
 
 export default function findTheCity(
     n: number,
diff --git a/import_map.json b/import_map.json
index 3bd6bc99..9eabe8c7 100644
--- a/import_map.json
+++ b/import_map.json
@@ -1,6 +1,6 @@
 {
     "imports": {
-        "asserts": "https://deno.land/std@0.172.0/testing/asserts.ts",
+        "asserts": "https://deno.land/std@0.173.0/testing/asserts.ts",
         "leetcode-class": "https://esm.sh/@masx200/leetcode-class@1.2.7/",
         "assert": "https://esm.sh/assert@2.0.0"
     },
diff --git a/minimum-cost-to-hire-k-workers/index.ts b/minimum-cost-to-hire-k-workers/index.ts
index 40d9984f..d7a12a21 100644
--- a/minimum-cost-to-hire-k-workers/index.ts
+++ b/minimum-cost-to-hire-k-workers/index.ts
@@ -22,4 +22,4 @@ function mincostToHireWorkers(
     return ans;
 }
 
-import { PriorityQueue } from "npm:@datastructures-js/priority-queue@6.1.4";
+import { PriorityQueue } from "npm:@datastructures-js/priority-queue@6.2.0";
diff --git a/minimum-path-sum/test.ts b/minimum-path-sum/test.ts
index 3e727807..71855dbd 100644
--- a/minimum-path-sum/test.ts
+++ b/minimum-path-sum/test.ts
@@ -1,4 +1,4 @@
-import { assertStrictEquals } from "https://deno.land/std@0.172.0/testing/asserts.ts";
+import { assertStrictEquals } from "https://deno.land/std@0.173.0/testing/asserts.ts";
 import minPathSum from "./index.ts";
 
 Deno.test("minimum-path-sum", () => {
diff --git a/path-with-minimum-effort/minimumEffortPath.ts b/path-with-minimum-effort/minimumEffortPath.ts
index 0f3160be..2d78e929 100644
--- a/path-with-minimum-effort/minimumEffortPath.ts
+++ b/path-with-minimum-effort/minimumEffortPath.ts
@@ -1,4 +1,4 @@
-import { BinaryHeap } from "https://deno.land/std@0.172.0/collections/binary_heap.ts";
+import { BinaryHeap } from "https://deno.land/std@0.173.0/collections/binary_heap.ts";
 
 function minimumEffortPath(heights: number[][]): number {
     const dirs = [
diff --git a/reachable-nodes-in-subdivided-graph/index.ts b/reachable-nodes-in-subdivided-graph/index.ts
index 22b5ee18..ca901b4f 100644
--- a/reachable-nodes-in-subdivided-graph/index.ts
+++ b/reachable-nodes-in-subdivided-graph/index.ts
@@ -44,4 +44,4 @@ export default function reachableNodes(
     }
     return reachableNodes;
 }
-import { BinaryHeap } from "https://deno.land/std@0.172.0/collections/binary_heap.ts";
+import { BinaryHeap } from "https://deno.land/std@0.173.0/collections/binary_heap.ts";
diff --git a/total-cost-to-hire-k-workers/index.ts b/total-cost-to-hire-k-workers/index.ts
index 1e577021..1bef3022 100644
--- a/total-cost-to-hire-k-workers/index.ts
+++ b/total-cost-to-hire-k-workers/index.ts
@@ -30,4 +30,4 @@ export default function totalCost(
     costs.sort(compare);
     return ans + costs.slice(0, k).reduce((p, c) => p + c, 0);
 }
-import { BinaryHeap } from "https://deno.land/std@0.172.0/collections/binary_heap.ts";
+import { BinaryHeap } from "https://deno.land/std@0.173.0/collections/binary_heap.ts";
diff --git a/utils/split_by_count.ts b/utils/split_by_count.ts
index b8be512b..b8cf37da 100644
--- a/utils/split_by_count.ts
+++ b/utils/split_by_count.ts
@@ -1,4 +1,4 @@
-import { chunk } from "https://deno.land/std@0.172.0/collections/chunk.ts";
+import { chunk } from "https://deno.land/std@0.173.0/collections/chunk.ts";
 
 export function split_by_count<T>(files: T[], limit: number): T[][] {
     return chunk(files, limit) as T[][];