diff --git a/config/karma/config-expectation-safari-penultimate.js b/config/karma/config-expectation-safari-penultimate.js
index 2af1f449..b6950cd6 100644
--- a/config/karma/config-expectation-safari-penultimate.js
+++ b/config/karma/config-expectation-safari-penultimate.js
@@ -78,5 +78,5 @@ module.exports = (config) => {
         }
     });
 
-    env.WEBKIT_HEADLESS_BIN = 'webkit-v16-4/pw_run.sh';
+    env.WEBKIT_HEADLESS_BIN = 'webkit-v17-0/pw_run.sh';
 };
diff --git a/config/karma/config-expectation-safari-previous.js b/config/karma/config-expectation-safari-previous.js
index cd2c32dc..6d74d61a 100644
--- a/config/karma/config-expectation-safari-previous.js
+++ b/config/karma/config-expectation-safari-previous.js
@@ -78,5 +78,5 @@ module.exports = (config) => {
         }
     });
 
-    env.WEBKIT_HEADLESS_BIN = 'webkit-v17-0/pw_run.sh';
+    env.WEBKIT_HEADLESS_BIN = 'webkit-v17-4/pw_run.sh';
 };
diff --git a/test/expectation/safari/current/audio-context-constructor.js b/test/expectation/safari/current/audio-context-constructor.js
index a27ddb34..eea6c5e9 100644
--- a/test/expectation/safari/current/audio-context-constructor.js
+++ b/test/expectation/safari/current/audio-context-constructor.js
@@ -229,20 +229,4 @@ describe('audioContextConstructor', () => {
             });
         });
     });
-
-    describe('getOutputTimestamp()', () => {
-        // bug #198
-
-        it('should expose a wrong contextTime', function (done) {
-            this.timeout(0);
-
-            setTimeout(() => {
-                expect(audioContext.currentTime).to.above(9);
-                expect(audioContext.getOutputTimestamp().contextTime).to.below(1);
-                expect(audioContext.getOutputTimestamp().contextTime * audioContext.sampleRate).to.above(9);
-
-                done();
-            }, 10000);
-        });
-    });
 });
diff --git a/test/expectation/safari/previous/audio-context-constructor.js b/test/expectation/safari/previous/audio-context-constructor.js
index a27ddb34..eea6c5e9 100644
--- a/test/expectation/safari/previous/audio-context-constructor.js
+++ b/test/expectation/safari/previous/audio-context-constructor.js
@@ -229,20 +229,4 @@ describe('audioContextConstructor', () => {
             });
         });
     });
-
-    describe('getOutputTimestamp()', () => {
-        // bug #198
-
-        it('should expose a wrong contextTime', function (done) {
-            this.timeout(0);
-
-            setTimeout(() => {
-                expect(audioContext.currentTime).to.above(9);
-                expect(audioContext.getOutputTimestamp().contextTime).to.below(1);
-                expect(audioContext.getOutputTimestamp().contextTime * audioContext.sampleRate).to.above(9);
-
-                done();
-            }, 10000);
-        });
-    });
 });