diff --git a/.mapping.json b/.mapping.json
index 81db21b8b..d8a46514f 100644
--- a/.mapping.json
+++ b/.mapping.json
@@ -12331,6 +12331,7 @@
   "client/web/divkit/tests/bundles/client.test.ts":"divkit/public/client/web/divkit/tests/bundles/client.test.ts",
   "client/web/divkit/tests/bundles/package.json":"divkit/public/client/web/divkit/tests/bundles/package.json",
   "client/web/divkit/tests/bundles/server.test.ts":"divkit/public/client/web/divkit/tests/bundles/server.test.ts",
+  "client/web/divkit/tests/expressions/expressions-integers.test.ts":"divkit/public/client/web/divkit/tests/expressions/expressions-integers.test.ts",
   "client/web/divkit/tests/expressions/expressions-with-out-bigint.test.ts":"divkit/public/client/web/divkit/tests/expressions/expressions-with-out-bigint.test.ts",
   "client/web/divkit/tests/expressions/expressions.test.ts":"divkit/public/client/web/divkit/tests/expressions/expressions.test.ts",
   "client/web/divkit/tests/expressions/nobigint/functions_arithmetic_integer.json":"divkit/public/client/web/divkit/tests/expressions/nobigint/functions_arithmetic_integer.json",
diff --git a/client/web/divkit/src/expressions/funcs/array.ts b/client/web/divkit/src/expressions/funcs/array.ts
index 1ac8e58f1..321c8fc82 100644
--- a/client/web/divkit/src/expressions/funcs/array.ts
+++ b/client/web/divkit/src/expressions/funcs/array.ts
@@ -33,6 +33,7 @@ function arrayGetter(jsType: string, runtimeType: string) {
                 throw new Error('Cannot convert value to integer.');
             }
             checkIntegerOverflow(ctx, val);
+            val = toBigInt(val);
         }
         if (jsType === 'string' && runtimeType === 'color') {
             val = transformColorValue(val as string);
diff --git a/client/web/divkit/src/expressions/funcs/dict.ts b/client/web/divkit/src/expressions/funcs/dict.ts
index 3fa1d3c65..57ff66f74 100644
--- a/client/web/divkit/src/expressions/funcs/dict.ts
+++ b/client/web/divkit/src/expressions/funcs/dict.ts
@@ -1,3 +1,4 @@
+import { toBigInt } from '../bigint';
 import { BOOLEAN, COLOR, DICT, INTEGER, NUMBER, STRING, URL } from '../const';
 import { BooleanValue, DictValue, EvalContext, EvalTypes, EvalValue, IntegerValue, NumberValue, StringValue } from '../eval';
 import { checkIntegerOverflow, transformColorValue } from '../utils';
@@ -42,6 +43,7 @@ function dictGetter(jsType: string, runtimeType: string) {
                 throw new Error('Cannot convert value to integer.');
             }
             checkIntegerOverflow(ctx, val);
+            val = toBigInt(val);
         }
         if (jsType === 'string' && runtimeType === 'color') {
             val = transformColorValue(val as string);
diff --git a/client/web/divkit/src/expressions/funcs/math.ts b/client/web/divkit/src/expressions/funcs/math.ts
index b87da72d8..34615ee51 100644
--- a/client/web/divkit/src/expressions/funcs/math.ts
+++ b/client/web/divkit/src/expressions/funcs/math.ts
@@ -2,7 +2,7 @@ import type { EvalContext, EvalValue, IntegerValue, NumberValue } from '../eval'
 import { registerFunc } from './funcs';
 import { INTEGER, MAX_NUMBER, MIN_NUMBER, NUMBER } from '../const';
 import { checkIntegerOverflow, roundInteger } from '../utils';
-import { absBigInt, bigIntZero, signBigInt, MAX_INT, MIN_INT } from '../bigint';
+import { absBigInt, bigIntZero, signBigInt, MAX_INT, MIN_INT, toBigInt } from '../bigint';
 
 function divInteger(ctx: EvalContext, arg0: IntegerValue, arg1: IntegerValue): EvalValue {
     if (arg1.value === bigIntZero) {
@@ -297,7 +297,7 @@ function copySignInteger(ctx: EvalContext, arg0: IntegerValue, arg1: IntegerValu
     if (arg1.value === bigIntZero) {
         res = arg0.value;
     } else if (arg0.value === bigIntZero) {
-        res = 0;
+        res = toBigInt(0);
     } else {
         const sign = signBigInt(arg1.value);
 
diff --git a/client/web/divkit/tests/expressions/expressions-integers.test.ts b/client/web/divkit/tests/expressions/expressions-integers.test.ts
new file mode 100644
index 000000000..d50232c94
--- /dev/null
+++ b/client/web/divkit/tests/expressions/expressions-integers.test.ts
@@ -0,0 +1,92 @@
+import { evalExpression, EvalResult } from '../../src/expressions/eval';
+import { valToString } from '../../src/expressions/utils';
+import { parse } from '../../src/expressions/expressions';
+import { createVariable } from '../../src/expressions/variable';
+
+const path = require('path');
+const fs = require('fs');
+
+const dir = path.resolve(__filename, '../../../../../../test_data/expression_test_data');
+
+const tests = fs.readdirSync(dir);
+
+function convertVals(val: EvalResult) {
+    if (val.type === 'boolean') {
+        return {
+            type: 'boolean',
+            value: val.value ? 1 : 0
+        };
+    } else if (val.type === 'integer') {
+        return {
+            type: 'integer',
+            // values in json is out of range already
+            value: Number(val.value)
+        };
+    } else if (val.type === 'datetime' && val.value instanceof Date) {
+        return {
+            type: 'datetime',
+            value: valToString(val)
+        };
+    }
+
+    return val;
+}
+
+function runCase(item: any) {
+    const vars = new Map();
+    if (item.variables) {
+        for (const variable of item.variables) {
+            vars.set(variable.name, createVariable(variable.name, variable.type, variable.value));
+        }
+    }
+    let ast;
+    try {
+        ast = parse(item.expression, {
+            startRule: 'JsonStringContents'
+        });
+    } catch (err: any) {
+        if (item.expected.value) {
+            expect({
+                type: 'error',
+                value: err.message
+            }).toEqual(item.expected);
+        } else {
+            expect('error').toEqual(item.expected.type);
+        }
+        return;
+    }
+    const res = evalExpression(vars, ast);
+    expect(typeof res.result.value).toEqual('bigint');
+}
+
+describe('expressions-integers', () => {
+    for (const file of tests) {
+        const name = file.replace('.json', '');
+        const contents = require(path.resolve(dir, file));
+
+        if (contents.cases) {
+            const counter: Record<string, number> = {};
+
+            describe(name, () => {
+                for (const item of contents.cases) {
+                    if (item.platforms.includes('web') && item.expected?.type === 'integer') {
+                        let name = item.name;
+
+                        if (!counter[name]) {
+                            counter[name] = 0;
+                        }
+
+                        name += ` : ${counter[name]++}`;
+
+                        it(name, () => {
+                            runCase(item);
+                        });
+                    } else {
+                        // eslint-disable-next-line no-console
+                        console.log('skip', file, name, item.name);
+                    }
+                }
+            });
+        }
+    }
+});