diff --git a/package.json b/package.json
index 2fc29ca9a..6404233c0 100644
--- a/package.json
+++ b/package.json
@@ -41,7 +41,8 @@
     "prettier-plugin-organize-imports": "^3.2.3",
     "prettier-plugin-solidity": "^1.1.3",
     "syncpack": "^11.2.1",
-    "typescript": "^5.2.2"
+    "typescript": "^5.2.2",
+    "ts-jest": "^29.1.1"
   },
   "overrides": {
     "web3-eth-contract": "1.10.0"
diff --git a/packages/paima-sdk/paima-concise/package.json b/packages/paima-sdk/paima-concise/package.json
index 6b1414c41..3643e2dc5 100644
--- a/packages/paima-sdk/paima-concise/package.json
+++ b/packages/paima-sdk/paima-concise/package.json
@@ -22,7 +22,7 @@
   "homepage": "https://docs.paimastudios.com",
   "scripts": {
     "lint:eslint": "eslint .",
-    "test": "jest",
+    "test": "jest --runInBand",
     "build": "tsc --build tsconfig.build.json"
   },
   "dependencies": {
@@ -31,7 +31,6 @@
   },
   "devDependencies": {
     "@types/node": "^18.17.1",
-    "ts-jest": "^29.1.1",
     "@paima/utils": "1.1.0"
   }
 }
diff --git a/packages/paima-sdk/paima-crypto/jest.config.js b/packages/paima-sdk/paima-crypto/jest.config.js
index 4049b608f..c6bfbc7f0 100644
--- a/packages/paima-sdk/paima-crypto/jest.config.js
+++ b/packages/paima-sdk/paima-crypto/jest.config.js
@@ -1,10 +1,10 @@
 /** @type {import('@ts-jest/dist/types').InitialOptionsTsJest} */
 export default {
   verbose: true,
-  preset: 'ts-jest/presets/default-esm',
+  extensionsToTreatAsEsm: ['.ts'],
   testEnvironment: 'node',
   transform: {
-    '^.+\\.[tj]sx?$': ['ts-jest', { useESM: true, }],
+    '^.+\\.tsx?$': ['ts-jest', { useESM: true, }],
   },
   transformIgnorePatterns: [
     '<rootDir>/node_modules/',
diff --git a/packages/paima-sdk/paima-providers/jest.config.js b/packages/paima-sdk/paima-providers/jest.config.js
index 4049b608f..c6bfbc7f0 100644
--- a/packages/paima-sdk/paima-providers/jest.config.js
+++ b/packages/paima-sdk/paima-providers/jest.config.js
@@ -1,10 +1,10 @@
 /** @type {import('@ts-jest/dist/types').InitialOptionsTsJest} */
 export default {
   verbose: true,
-  preset: 'ts-jest/presets/default-esm',
+  extensionsToTreatAsEsm: ['.ts'],
   testEnvironment: 'node',
   transform: {
-    '^.+\\.[tj]sx?$': ['ts-jest', { useESM: true, }],
+    '^.+\\.tsx?$': ['ts-jest', { useESM: true, }],
   },
   transformIgnorePatterns: [
     '<rootDir>/node_modules/',
diff --git a/packages/paima-sdk/paima-utils-backend/package.json b/packages/paima-sdk/paima-utils-backend/package.json
index 1f5abedc9..89a3c961b 100644
--- a/packages/paima-sdk/paima-utils-backend/package.json
+++ b/packages/paima-sdk/paima-utils-backend/package.json
@@ -25,8 +25,7 @@
     "build": "tsc"
   },
   "devDependencies": {
-    "@types/node": "^18.17.1",
-    "ts-jest": "^29.1.1"
+    "@types/node": "^18.17.1"
   },
   "dependencies": {
     "yaml": "^2.3.1",
diff --git a/packages/paima-sdk/paima-utils/jest.config.js b/packages/paima-sdk/paima-utils/jest.config.js
index 2f167ba14..e8aca2bf1 100644
--- a/packages/paima-sdk/paima-utils/jest.config.js
+++ b/packages/paima-sdk/paima-utils/jest.config.js
@@ -1,10 +1,10 @@
 /** @type {import('@ts-jest/dist/types').InitialOptionsTsJest} */
 export default {
     verbose: true,
-    preset: 'ts-jest/presets/default-esm',
+    extensionsToTreatAsEsm: ['.ts'],
     testEnvironment: 'node',
     transform: {
-      '^.+\\.[tj]sx?$': ['ts-jest', { useESM: true, }],
+      '^.+\\.tsx?$': ['ts-jest', { useESM: true, }],
     },
     transformIgnorePatterns: [
       '<rootDir>/node_modules/',