diff --git a/constants.gradle b/constants.gradle
index 9510b8442e..77609df69b 100644
--- a/constants.gradle
+++ b/constants.gradle
@@ -26,7 +26,8 @@ project.ext {
     checkerframeworkVersion = '2.5.0'
     jsr305Version = '3.0.2'
     kotlinAnnotationsVersion = '1.3.31'
-    androidXTestVersion = '1.1.0'
+    androidxAnnotationVersion = '1.1.0'
+    androidxTestVersion = '1.1.0'
     truthVersion = '0.44'
     modulePrefix = ':'
     if (gradle.ext.has('exoplayerModulePrefix')) {
diff --git a/demos/gvr/build.gradle b/demos/gvr/build.gradle
index 37d8fbbb99..96c699b2e6 100644
--- a/demos/gvr/build.gradle
+++ b/demos/gvr/build.gradle
@@ -53,7 +53,7 @@ dependencies {
     implementation project(modulePrefix + 'library-hls')
     implementation project(modulePrefix + 'library-smoothstreaming')
     implementation project(modulePrefix + 'extension-gvr')
-    implementation 'androidx.annotation:annotation:1.1.0'
+    implementation 'androidx.annotation:annotation:' + androidxAnnotationVersion
 }
 
 apply plugin: 'com.google.android.gms.strict-version-matcher-plugin'
diff --git a/demos/ima/build.gradle b/demos/ima/build.gradle
index 124555d9b5..289fa1dc83 100644
--- a/demos/ima/build.gradle
+++ b/demos/ima/build.gradle
@@ -53,7 +53,7 @@ dependencies {
     implementation project(modulePrefix + 'library-hls')
     implementation project(modulePrefix + 'library-smoothstreaming')
     implementation project(modulePrefix + 'extension-ima')
-    implementation 'androidx.annotation:annotation:1.1.0'
+    implementation 'androidx.annotation:annotation:' + androidxAnnotationVersion
 }
 
 apply plugin: 'com.google.android.gms.strict-version-matcher-plugin'
diff --git a/demos/main/build.gradle b/demos/main/build.gradle
index be08ca9ea2..06c734986c 100644
--- a/demos/main/build.gradle
+++ b/demos/main/build.gradle
@@ -62,7 +62,7 @@ android {
 }
 
 dependencies {
-    implementation 'androidx.annotation:annotation:1.1.0'
+    implementation 'androidx.annotation:annotation:' + androidxAnnotationVersion
     implementation 'com.google.android.material:material:1.0.0'
     implementation project(modulePrefix + 'library-core')
     implementation project(modulePrefix + 'library-dash')
diff --git a/extensions/cast/build.gradle b/extensions/cast/build.gradle
index 4af8f94c58..0d7d96db4c 100644
--- a/extensions/cast/build.gradle
+++ b/extensions/cast/build.gradle
@@ -32,7 +32,7 @@ android {
 
 dependencies {
     api 'com.google.android.gms:play-services-cast-framework:17.0.0'
-    implementation 'androidx.annotation:annotation:1.1.0'
+    implementation 'androidx.annotation:annotation:' + androidxAnnotationVersion
     implementation project(modulePrefix + 'library-core')
     implementation project(modulePrefix + 'library-ui')
     compileOnly 'org.checkerframework:checker-qual:' + checkerframeworkVersion
diff --git a/extensions/cronet/build.gradle b/extensions/cronet/build.gradle
index 9c49ba94e1..9b618cd036 100644
--- a/extensions/cronet/build.gradle
+++ b/extensions/cronet/build.gradle
@@ -33,7 +33,7 @@ android {
 dependencies {
     api 'org.chromium.net:cronet-embedded:75.3770.101'
     implementation project(modulePrefix + 'library-core')
-    implementation 'androidx.annotation:annotation:1.1.0'
+    implementation 'androidx.annotation:annotation:' + androidxAnnotationVersion
     compileOnly 'org.checkerframework:checker-qual:' + checkerframeworkVersion
     testImplementation project(modulePrefix + 'library')
     testImplementation project(modulePrefix + 'testutils')
diff --git a/extensions/ffmpeg/build.gradle b/extensions/ffmpeg/build.gradle
index 2b5a6010a9..657fa75c24 100644
--- a/extensions/ffmpeg/build.gradle
+++ b/extensions/ffmpeg/build.gradle
@@ -38,7 +38,7 @@ android {
 
 dependencies {
     implementation project(modulePrefix + 'library-core')
-    implementation 'androidx.annotation:annotation:1.1.0'
+    implementation 'androidx.annotation:annotation:' + androidxAnnotationVersion
     compileOnly 'org.checkerframework:checker-qual:' + checkerframeworkVersion
     testImplementation project(modulePrefix + 'testutils')
     testImplementation 'org.robolectric:robolectric:' + robolectricVersion
diff --git a/extensions/flac/build.gradle b/extensions/flac/build.gradle
index dfac2e1c26..5d68711aa7 100644
--- a/extensions/flac/build.gradle
+++ b/extensions/flac/build.gradle
@@ -39,10 +39,10 @@ android {
 
 dependencies {
     implementation project(modulePrefix + 'library-core')
-    implementation 'androidx.annotation:annotation:1.1.0'
+    implementation 'androidx.annotation:annotation:' + androidxAnnotationVersion
     compileOnly 'org.checkerframework:checker-qual:' + checkerframeworkVersion
     androidTestImplementation project(modulePrefix + 'testutils')
-    androidTestImplementation 'androidx.test:runner:' + androidXTestVersion
+    androidTestImplementation 'androidx.test:runner:' + androidxTestVersion
     testImplementation project(modulePrefix + 'testutils')
     testImplementation 'org.robolectric:robolectric:' + robolectricVersion
 }
diff --git a/extensions/gvr/build.gradle b/extensions/gvr/build.gradle
index 1031d6f4b7..f8992616a2 100644
--- a/extensions/gvr/build.gradle
+++ b/extensions/gvr/build.gradle
@@ -33,7 +33,7 @@ android {
 dependencies {
     implementation project(modulePrefix + 'library-core')
     implementation project(modulePrefix + 'library-ui')
-    implementation 'androidx.annotation:annotation:1.1.0'
+    implementation 'androidx.annotation:annotation:' + androidxAnnotationVersion
     api 'com.google.vr:sdk-base:1.190.0'
     compileOnly 'org.checkerframework:checker-qual:' + checkerframeworkVersion
 }
diff --git a/extensions/ima/build.gradle b/extensions/ima/build.gradle
index e330b13e47..e2292aed8f 100644
--- a/extensions/ima/build.gradle
+++ b/extensions/ima/build.gradle
@@ -34,7 +34,7 @@ android {
 dependencies {
     api 'com.google.ads.interactivemedia.v3:interactivemedia:3.11.3'
     implementation project(modulePrefix + 'library-core')
-    implementation 'androidx.annotation:annotation:1.1.0'
+    implementation 'androidx.annotation:annotation:' + androidxAnnotationVersion
     implementation 'com.google.android.gms:play-services-ads-identifier:17.0.0'
     testImplementation project(modulePrefix + 'testutils')
     testImplementation 'org.robolectric:robolectric:' + robolectricVersion
diff --git a/extensions/leanback/build.gradle b/extensions/leanback/build.gradle
index ecaa78e25b..f0be172c90 100644
--- a/extensions/leanback/build.gradle
+++ b/extensions/leanback/build.gradle
@@ -32,7 +32,7 @@ android {
 
 dependencies {
     implementation project(modulePrefix + 'library-core')
-    implementation 'androidx.annotation:annotation:1.1.0'
+    implementation 'androidx.annotation:annotation:' + androidxAnnotationVersion
     implementation 'androidx.leanback:leanback:1.0.0'
 }
 
diff --git a/extensions/okhttp/build.gradle b/extensions/okhttp/build.gradle
index 68bd422185..b0d9fb0187 100644
--- a/extensions/okhttp/build.gradle
+++ b/extensions/okhttp/build.gradle
@@ -33,7 +33,7 @@ android {
 
 dependencies {
     implementation project(modulePrefix + 'library-core')
-    implementation 'androidx.annotation:annotation:1.1.0'
+    implementation 'androidx.annotation:annotation:' + androidxAnnotationVersion
     compileOnly 'org.checkerframework:checker-qual:' + checkerframeworkVersion
     api 'com.squareup.okhttp3:okhttp:3.12.1'
 }
diff --git a/extensions/opus/build.gradle b/extensions/opus/build.gradle
index 7b621a8df9..2759299d63 100644
--- a/extensions/opus/build.gradle
+++ b/extensions/opus/build.gradle
@@ -39,11 +39,11 @@ android {
 
 dependencies {
     implementation project(modulePrefix + 'library-core')
-    implementation 'androidx.annotation:annotation:1.1.0'
+    implementation 'androidx.annotation:annotation:' + androidxAnnotationVersion
     testImplementation project(modulePrefix + 'testutils')
     testImplementation 'org.robolectric:robolectric:' + robolectricVersion
-    androidTestImplementation 'androidx.test:runner:' + androidXTestVersion
-    androidTestImplementation 'androidx.test.ext:junit:' + androidXTestVersion
+    androidTestImplementation 'androidx.test:runner:' + androidxTestVersion
+    androidTestImplementation 'androidx.test.ext:junit:' + androidxTestVersion
 }
 
 ext {
diff --git a/extensions/rtmp/build.gradle b/extensions/rtmp/build.gradle
index 9c709305bf..88d3524d72 100644
--- a/extensions/rtmp/build.gradle
+++ b/extensions/rtmp/build.gradle
@@ -33,7 +33,7 @@ android {
 dependencies {
     implementation project(modulePrefix + 'library-core')
     implementation 'net.butterflytv.utils:rtmp-client:3.1.0'
-    implementation 'androidx.annotation:annotation:1.1.0'
+    implementation 'androidx.annotation:annotation:' + androidxAnnotationVersion
     testImplementation project(modulePrefix + 'testutils')
     testImplementation 'org.robolectric:robolectric:' + robolectricVersion
 }
diff --git a/extensions/vp9/build.gradle b/extensions/vp9/build.gradle
index 3b8271869b..e40d6e02d7 100644
--- a/extensions/vp9/build.gradle
+++ b/extensions/vp9/build.gradle
@@ -39,11 +39,11 @@ android {
 
 dependencies {
     implementation project(modulePrefix + 'library-core')
-    implementation 'androidx.annotation:annotation:1.1.0'
+    implementation 'androidx.annotation:annotation:' + androidxAnnotationVersion
     testImplementation project(modulePrefix + 'testutils')
     testImplementation 'org.robolectric:robolectric:' + robolectricVersion
-    androidTestImplementation 'androidx.test:runner:' + androidXTestVersion
-    androidTestImplementation 'androidx.test.ext:junit:' + androidXTestVersion
+    androidTestImplementation 'androidx.test:runner:' + androidxTestVersion
+    androidTestImplementation 'androidx.test.ext:junit:' + androidxTestVersion
     androidTestImplementation 'com.google.truth:truth:' + truthVersion
 }
 
diff --git a/library/core/build.gradle b/library/core/build.gradle
index d6aee8a35d..afccef3e24 100644
--- a/library/core/build.gradle
+++ b/library/core/build.gradle
@@ -57,21 +57,21 @@ android {
 }
 
 dependencies {
-    implementation 'androidx.annotation:annotation:1.1.0'
+    implementation 'androidx.annotation:annotation:' + androidxAnnotationVersion
     compileOnly 'com.google.code.findbugs:jsr305:' + jsr305Version
     compileOnly 'org.checkerframework:checker-qual:' + checkerframeworkVersion
     compileOnly 'org.checkerframework:checker-compat-qual:' + checkerframeworkVersion
     compileOnly 'org.jetbrains.kotlin:kotlin-annotations-jvm:' + kotlinAnnotationsVersion
-    androidTestImplementation 'androidx.test:runner:' + androidXTestVersion
-    androidTestImplementation 'androidx.test.ext:junit:' + androidXTestVersion
+    androidTestImplementation 'androidx.test:runner:' + androidxTestVersion
+    androidTestImplementation 'androidx.test.ext:junit:' + androidxTestVersion
     androidTestImplementation 'com.google.truth:truth:' + truthVersion
     androidTestImplementation 'com.google.auto.value:auto-value-annotations:' + autoValueVersion
     androidTestImplementation 'com.linkedin.dexmaker:dexmaker:' + dexmakerVersion
     androidTestImplementation 'com.linkedin.dexmaker:dexmaker-mockito:' + dexmakerVersion
     androidTestImplementation 'org.mockito:mockito-core:' + mockitoVersion
     androidTestAnnotationProcessor 'com.google.auto.value:auto-value:' + autoValueVersion
-    testImplementation 'androidx.test:core:' + androidXTestVersion
-    testImplementation 'androidx.test.ext:junit:' + androidXTestVersion
+    testImplementation 'androidx.test:core:' + androidxTestVersion
+    testImplementation 'androidx.test.ext:junit:' + androidxTestVersion
     testImplementation 'com.google.truth:truth:' + truthVersion
     testImplementation 'org.mockito:mockito-core:' + mockitoVersion
     testImplementation 'org.robolectric:robolectric:' + robolectricVersion
diff --git a/library/dash/build.gradle b/library/dash/build.gradle
index c64da2b86d..ac90d64c1e 100644
--- a/library/dash/build.gradle
+++ b/library/dash/build.gradle
@@ -42,7 +42,7 @@ dependencies {
     implementation project(modulePrefix + 'library-core')
     compileOnly 'org.checkerframework:checker-qual:' + checkerframeworkVersion
     compileOnly 'org.checkerframework:checker-compat-qual:' + checkerframeworkVersion
-    implementation 'androidx.annotation:annotation:1.1.0'
+    implementation 'androidx.annotation:annotation:' + androidxAnnotationVersion
     testImplementation project(modulePrefix + 'testutils')
     testImplementation 'org.robolectric:robolectric:' + robolectricVersion
 }
diff --git a/library/hls/build.gradle b/library/hls/build.gradle
index 0f685c1130..07696c1c26 100644
--- a/library/hls/build.gradle
+++ b/library/hls/build.gradle
@@ -39,7 +39,7 @@ android {
 }
 
 dependencies {
-    implementation 'androidx.annotation:annotation:1.1.0'
+    implementation 'androidx.annotation:annotation:' + androidxAnnotationVersion
     compileOnly 'org.checkerframework:checker-qual:' + checkerframeworkVersion
     compileOnly 'org.checkerframework:checker-compat-qual:' + checkerframeworkVersion
     implementation project(modulePrefix + 'library-core')
diff --git a/library/smoothstreaming/build.gradle b/library/smoothstreaming/build.gradle
index b16157f49b..4fe2fae328 100644
--- a/library/smoothstreaming/build.gradle
+++ b/library/smoothstreaming/build.gradle
@@ -42,7 +42,7 @@ dependencies {
     implementation project(modulePrefix + 'library-core')
     compileOnly 'org.checkerframework:checker-qual:' + checkerframeworkVersion
     compileOnly 'org.checkerframework:checker-compat-qual:' + checkerframeworkVersion
-    implementation 'androidx.annotation:annotation:1.1.0'
+    implementation 'androidx.annotation:annotation:' + androidxAnnotationVersion
     testImplementation project(modulePrefix + 'testutils')
     testImplementation 'org.robolectric:robolectric:' + robolectricVersion
 }
diff --git a/library/ui/build.gradle b/library/ui/build.gradle
index 5b3123e302..3735c94096 100644
--- a/library/ui/build.gradle
+++ b/library/ui/build.gradle
@@ -41,7 +41,7 @@ android {
 dependencies {
     implementation project(modulePrefix + 'library-core')
     implementation 'androidx.media:media:1.0.1'
-    implementation 'androidx.annotation:annotation:1.1.0'
+    implementation 'androidx.annotation:annotation:' + androidxAnnotationVersion
     compileOnly 'org.checkerframework:checker-qual:' + checkerframeworkVersion
     testImplementation project(modulePrefix + 'testutils')
     testImplementation 'org.robolectric:robolectric:' + robolectricVersion
diff --git a/playbacktests/build.gradle b/playbacktests/build.gradle
index 5865d3c36d..d77944cf23 100644
--- a/playbacktests/build.gradle
+++ b/playbacktests/build.gradle
@@ -32,9 +32,9 @@ android {
 }
 
 dependencies {
-    androidTestImplementation 'androidx.test:rules:' + androidXTestVersion
-    androidTestImplementation 'androidx.test:runner:' + androidXTestVersion
-    androidTestImplementation 'androidx.annotation:annotation:1.1.0'
+    androidTestImplementation 'androidx.test:rules:' + androidxTestVersion
+    androidTestImplementation 'androidx.test:runner:' + androidxTestVersion
+    androidTestImplementation 'androidx.annotation:annotation:' + androidxAnnotationVersion
     androidTestImplementation project(modulePrefix + 'library-core')
     androidTestImplementation project(modulePrefix + 'library-dash')
     androidTestImplementation project(modulePrefix + 'library-hls')
diff --git a/testutils/build.gradle b/testutils/build.gradle
index 5c6731c17b..3c7b13a6a8 100644
--- a/testutils/build.gradle
+++ b/testutils/build.gradle
@@ -39,10 +39,10 @@ android {
 
 dependencies {
     api 'org.mockito:mockito-core:' + mockitoVersion
-    api 'androidx.test:core:' + androidXTestVersion
-    api 'androidx.test.ext:junit:' + androidXTestVersion
+    api 'androidx.test:core:' + androidxTestVersion
+    api 'androidx.test.ext:junit:' + androidxTestVersion
     api 'com.google.truth:truth:' + truthVersion
-    implementation 'androidx.annotation:annotation:1.1.0'
+    implementation 'androidx.annotation:annotation:' + androidxAnnotationVersion
     implementation project(modulePrefix + 'library-core')
     implementation 'com.google.auto.value:auto-value-annotations:' + autoValueVersion
     annotationProcessor 'com.google.auto.value:auto-value:' + autoValueVersion