diff --git a/desktop/app/src/utils/CertificateProvider.tsx b/desktop/app/src/utils/CertificateProvider.tsx
index 863d759eb..a57ee1f05 100644
--- a/desktop/app/src/utils/CertificateProvider.tsx
+++ b/desktop/app/src/utils/CertificateProvider.tsx
@@ -54,7 +54,7 @@ const deviceClientCertFile = 'device.crt';
 const caSubject = '/C=US/ST=CA/L=Menlo Park/O=Sonar/CN=SonarCA';
 const serverSubject = '/C=US/ST=CA/L=Menlo Park/O=Sonar/CN=localhost';
 const minCertExpiryWindowSeconds = 24 * 60 * 60;
-const allowedAppNameRegex = /^[\w._-]+$/;
+const allowedAppNameRegex = /^[\w.-]+$/;
 const logTag = 'CertificateProvider';
 /*
  * RFC2253 specifies the unamiguous x509 subject format.
@@ -395,11 +395,11 @@ export default class CertificateProvider {
               .filter((d) => d.foundCsr !== null)
               .map((d) => (d.foundCsr ? encodeURI(d.foundCsr) : 'null'));
             console.error(`Looking for CSR (url encoded):
-            
+
             ${encodeURI(this.santitizeString(csr))}
-            
+
             Found these:
-            
+
             ${foundCsrs.join('\n\n')}`);
             throw new Error(`No matching device found for app: ${appName}`);
           }
diff --git a/desktop/app/src/utils/androidContainerUtilityInternal.tsx b/desktop/app/src/utils/androidContainerUtilityInternal.tsx
index 740476976..45c0b367b 100644
--- a/desktop/app/src/utils/androidContainerUtilityInternal.tsx
+++ b/desktop/app/src/utils/androidContainerUtilityInternal.tsx
@@ -15,7 +15,7 @@
 import {UnsupportedError} from './metrics';
 import adbkit, {Client} from 'adbkit';
 
-const allowedAppNameRegex = /^[\w._-]+$/;
+const allowedAppNameRegex = /^[\w.-]+$/;
 const appNotApplicationRegex = /not an application/;
 const appNotDebuggableRegex = /debuggable/;
 const operationNotPermittedRegex = /not permitted/;
diff --git a/desktop/babel-transformer/src/fb-stubs.ts b/desktop/babel-transformer/src/fb-stubs.ts
index d3b87b518..6db1f0dee 100644
--- a/desktop/babel-transformer/src/fb-stubs.ts
+++ b/desktop/babel-transformer/src/fb-stubs.ts
@@ -15,7 +15,7 @@ const isFBFile = (filePath: string) =>
   filePath.includes(`${path.sep}fb${path.sep}`);
 
 const requireFromFolder = (folder: string, path: string) =>
-  new RegExp(folder + '/[\\w.-_]+(.js)?$', 'g').test(path);
+  new RegExp(folder + '/[\\w.-]+(.js)?$', 'g').test(path);
 
 module.exports = () => ({
   name: 'replace-fb-stubs',
diff --git a/desktop/plugins/crash_reporter/index.tsx b/desktop/plugins/crash_reporter/index.tsx
index 39e757056..227f08418 100644
--- a/desktop/plugins/crash_reporter/index.tsx
+++ b/desktop/plugins/crash_reporter/index.tsx
@@ -321,7 +321,7 @@ export function parseCrashLog(
       const regForName = /.*\n/;
       const nameRegArr = regForName.exec(content);
       let name = nameRegArr ? nameRegArr[0] : fallbackReason;
-      const regForCallStack = /\tat[\w\s\n.$&+,:;=?@#|'<>.^*()%!-]*$/;
+      const regForCallStack = /\tat[\w\s\n\.$&+,:;=?@#|'<>.^*()%!-]*$/;
       const callStackArray = regForCallStack.exec(content);
       const callStack = callStackArray ? callStackArray[0] : '';
       let remainingString =
@@ -360,18 +360,12 @@ function truncate(baseString: string, numOfChars: number): string {
 }
 
 export function parsePath(content: string): Maybe<string> {
-  const regex = /Path: *[\w\-\/\.\t\ \_\%]*\n/;
+  const regex = /(?<=.*Path: *)[^\n]*/;
   const arr = regex.exec(content);
   if (!arr || arr.length <= 0) {
     return null;
   }
-  const pathString = arr[0];
-  const pathRegex = /[\w\-\/\.\t\ \_\%]*\n/;
-  const tmp = pathRegex.exec(pathString);
-  if (!tmp || tmp.length == 0) {
-    return null;
-  }
-  const path = tmp[0];
+  const path = arr[0];
   return path.trim();
 }
 
diff --git a/desktop/plugins/sections/src/StackTrace.tsx b/desktop/plugins/sections/src/StackTrace.tsx
index 88aa47a6b..3e9983b89 100644
--- a/desktop/plugins/sections/src/StackTrace.tsx
+++ b/desktop/plugins/sections/src/StackTrace.tsx
@@ -12,7 +12,7 @@ import {colors, StackTrace} from 'flipper';
 
 const FacebookLibraries = ['Facebook'];
 
-const REGEX = /\d+\s+(?<library>(\s|\w|\.)+\w)\s+(?<address>0x\w+?)\s+(?<caller>.+) \+ (?<lineNumber>\d+)/;
+const REGEX = /\d+\s+(?<library>[\s\w\.]+\w)\s+(?<address>0x\w+?)\s+(?<caller>.+) \+ (?<lineNumber>\d+)/;
 
 function isSystemLibrary(libraryName: string | null | undefined): boolean {
   return libraryName ? !FacebookLibraries.includes(libraryName) : false;