diff --git a/lib/adapters/default.js b/lib/adapters/default.js
index c23ca00..360041e 100644
--- a/lib/adapters/default.js
+++ b/lib/adapters/default.js
@@ -29,7 +29,10 @@ function requestProxy(options = {}) {
         reqId = requestOptions.headers[traceHeaderName];
 
         reqObj = mapOutReq(requestOptions, reqId, opts);
-        const blacklistedPathRegex = opts.blacklistedPathRegex;
+        const blacklistedPathRegex =
+          typeof opts.blacklistedPathRegex === 'string'
+            ? new RegExp(opts.blacklistedPathRegex, 'gi')
+            : opts.blacklistedPathRegex;
         if (!reqObj.protocol || (blacklistedPathRegex && blacklistedPathRegex.test(reqObj.path))) {
           // do not log custom requests (for example requests started by the newrelic agent)
           return target.apply(thisArg, argumentsList);
diff --git a/lib/transformers/transformers.js b/lib/transformers/transformers.js
index d1a6a8f..5890142 100644
--- a/lib/transformers/transformers.js
+++ b/lib/transformers/transformers.js
@@ -179,7 +179,7 @@ const mapOutReq = (requestOptions, reqId, opts = {}) => {
       if (opts.bodyKeysCallback && typeof opts.bodyKeysCallback === 'function') {
         picked = opts.bodyKeysCallback(picked);
       } else if (opts.bodyKeysRegex) {
-        const REGEX = opts.bodyKeysRegex;
+        const REGEX = typeof opts.bodyKeysRegex === 'string' ? new RegExp(opts.bodyKeysRegex, 'i') : opts.bodyKeysRegex;
         picked = pickBy(picked, (_, key) => REGEX.test(key));
       } else {
         picked = pick(picked, opts.bodyKeys);
diff --git a/test/lib/adapters/default/requestProxyTest.js b/test/lib/adapters/default/requestProxyTest.js
index c7925b2..d5abab6 100644
--- a/test/lib/adapters/default/requestProxyTest.js
+++ b/test/lib/adapters/default/requestProxyTest.js
@@ -164,50 +164,100 @@ describe('#defaultAdapter', () => {
       logger.info.callCount.should.eql(0);
     });
 
-    it('should pass but not log when path is in blacklisted paths', () => {
-      const logger = {
-        info: sandbox.spy()
-      };
-      const serialize = a => a;
-      const traceHeaderName = 'test';
-      const requestProxy = defaultAdapter.requestProxy({
-        logger,
-        serialize,
-        traceHeaderName,
-        level: 'info',
-        opts: {
-          blacklistedPathRegex: new RegExp('^/v4.0/traces$'),
-          request: {
-            enabled: true
+    context('when path is in blacklisted paths', () => {
+      it('should pass but not log when path is in blacklisted paths', () => {
+        const logger = {
+          info: sandbox.spy()
+        };
+        const serialize = a => a;
+        const traceHeaderName = 'test';
+        const requestProxy = defaultAdapter.requestProxy({
+          logger,
+          serialize,
+          traceHeaderName,
+          level: 'info',
+          opts: {
+            blacklistedPathRegex: new RegExp('^/v4.0/traces$'),
+            request: {
+              enabled: true
+            },
+            hostFieldName: 'myHost'
+          }
+        });
+        const options = {
+          method: 'PUT',
+          port: '8080',
+          headers: {
+            test: 'ok'
           },
-          hostFieldName: 'myHost'
-        }
+          protocol: 'https:',
+          path: '/v4.0/traces',
+          pathname: '/v4.0/traces',
+          hostname: 'test-host'
+        };
+        const http = {
+          request: () => {
+            return {
+              on: (event, fn) => {
+                fn({
+                  statusCode: 200
+                });
+              }
+            };
+          }
+        };
+        http.request = new Proxy(http.request, requestProxy);
+        http.request(options);
+        logger.info.callCount.should.eql(0);
+      });
+
+      it('should convert a string blacklistedPathRegex to RegExp', () => {
+        const logger = {
+          info: sandbox.spy(),
+          error: sandbox.spy()
+        };
+        const serialize = a => a;
+        const traceHeaderName = 'test';
+        const requestProxy = defaultAdapter.requestProxy({
+          logger,
+          serialize,
+          traceHeaderName,
+          level: 'info',
+          opts: {
+            blacklistedPathRegex: '^/v4.0/trac.*',
+            request: {
+              enabled: true
+            },
+            hostFieldName: 'myHost'
+          }
+        });
+        const options = {
+          method: 'PUT',
+          port: '8080',
+          headers: {
+            test: 'ok'
+          },
+          protocol: 'https:',
+          path: '/v4.0/traces',
+          pathname: '/v4.0/traces',
+          hostname: 'test-host'
+        };
+        const http = {
+          request: () => {
+            return {
+              on: (event, fn) => {
+                fn({
+                  statusCode: 200
+                });
+              }
+            };
+          }
+        };
+        http.request = new Proxy(http.request, requestProxy);
+        http.request(options);
+        logger.info.callCount.should.eql(0);
+        logger.error.callCount.should.eql(0);
       });
-      const options = {
-        method: 'PUT',
-        port: '8080',
-        headers: {
-          test: 'ok'
-        },
-        protocol: 'https:',
-        path: '/v4.0/traces',
-        pathname: '/v4.0/traces',
-        hostname: 'test-host'
-      };
-      const http = {
-        request: () => {
-          return {
-            on: (event, fn) => {
-              fn({
-                statusCode: 200
-              });
-            }
-          };
-        }
-      };
-      http.request = new Proxy(http.request, requestProxy);
-      http.request(options);
-      logger.info.callCount.should.eql(0);
     });
 
     it('should pass when incomingMessage.url does not exist', () => {
diff --git a/test/lib/transformers/transformersTest.js b/test/lib/transformers/transformersTest.js
index 2fe52df..d167ebf 100644
--- a/test/lib/transformers/transformersTest.js
+++ b/test/lib/transformers/transformersTest.js
@@ -274,4 +274,45 @@ describe('mapOutReq', () => {
       log_tag: 'outbound_request'
     });
   });
+
+  it('should convert a string bodyKeysRegex to RegExp', () => {
+    const inMsg = {
+      method: 'POST',
+      body: '{ "bananas": "bar", "banana1": "apple1", "banana2": "apple2" }',
+      headers: {
+        'Content-type': 'application/json; charset=UTF-8'
+      },
+      uri: {
+        protocol: 'http:',
+        hostname: 'hostname',
+        pathname: 'path',
+        query: 'query'
+      }
+    };
+
+    const options = {
+      bodyKeysRegex: '^banana\\d+'
+    };
+
+    const result = mapOutReq(inMsg, undefined, options);
+    result.should.eql({
+      method: 'POST',
+      protocol: 'http',
+      host: 'hostname',
+      port: undefined,
+      path: 'path',
+      query: 'query',
+      href: 'http://hostname/path',
+      requestId: undefined,
+      contentLength: 0,
+      log_tag: 'outbound_request',
+      metaHeaders: {},
+      metaBody: {
+        body: {
+          banana1: 'apple1',
+          banana2: 'apple2'
+        }
+      }
+    });
+  });
 });