diff --git a/pgpainless-sop/build.gradle b/pgpainless-sop/build.gradle
index aa0f5993..53b499c6 100644
--- a/pgpainless-sop/build.gradle
+++ b/pgpainless-sop/build.gradle
@@ -22,7 +22,7 @@ dependencies {
     testImplementation "ch.qos.logback:logback-classic:$logbackVersion"
 
     // Depend on "shared" sop-java test suite (fixtures are turned into tests by inheritance inside test sources)
-    testImplementation(testFixtures("org.pgpainless:sop-java:$sopJavaVersion"))
+    testImplementation "org.pgpainless:sop-java-testfixtures:$sopJavaVersion"
 
     implementation(project(":pgpainless-core"))
     api "org.pgpainless:sop-java:$sopJavaVersion"
diff --git a/pgpainless-sop/src/main/kotlin/org/pgpainless/sop/ArmorImpl.kt b/pgpainless-sop/src/main/kotlin/org/pgpainless/sop/ArmorImpl.kt
index bf7e63f1..40ac811d 100644
--- a/pgpainless-sop/src/main/kotlin/org/pgpainless/sop/ArmorImpl.kt
+++ b/pgpainless-sop/src/main/kotlin/org/pgpainless/sop/ArmorImpl.kt
@@ -12,7 +12,6 @@ import org.bouncycastle.util.io.Streams
 import org.pgpainless.decryption_verification.OpenPgpInputStream
 import org.pgpainless.util.ArmoredOutputStreamFactory
 import sop.Ready
-import sop.enums.ArmorLabel
 import sop.exception.SOPGPException
 import sop.operation.Armor
 
@@ -46,9 +45,4 @@ class ArmorImpl : Armor {
             }
         }
     }
-
-    @Deprecated("Setting custom labels is not supported.")
-    override fun label(label: ArmorLabel): Armor {
-        throw SOPGPException.UnsupportedOption("Setting custom Armor labels not supported.")
-    }
 }
diff --git a/pgpainless-sop/src/main/kotlin/org/pgpainless/sop/VersionImpl.kt b/pgpainless-sop/src/main/kotlin/org/pgpainless/sop/VersionImpl.kt
index c6761a39..46aa4f14 100644
--- a/pgpainless-sop/src/main/kotlin/org/pgpainless/sop/VersionImpl.kt
+++ b/pgpainless-sop/src/main/kotlin/org/pgpainless/sop/VersionImpl.kt
@@ -72,17 +72,5 @@ https://www.bouncycastle.org/java.html"""
             ?: ""
     }
 
-    private fun getSopJavaVersion(): String? {
-        return try {
-            val resourceIn: InputStream =
-                javaClass.getResourceAsStream("/sop-java-version.properties")
-                    ?: throw IOException("File sop-java-version.properties not found.")
-            val properties = Properties().apply { load(resourceIn) }
-            properties.getProperty("sop-java-version")
-        } catch (e: IOException) {
-            null
-        }
-    }
-
     override fun isSopSpecImplementationIncomplete(): Boolean = false
 }
diff --git a/version.gradle b/version.gradle
index 07c66ec5..4d36ca57 100644
--- a/version.gradle
+++ b/version.gradle
@@ -14,6 +14,6 @@ allprojects {
         logbackVersion = '1.5.13'
         mockitoVersion = '4.5.1'
         slf4jVersion = '1.7.36'
-        sopJavaVersion = '10.0.3'
+        sopJavaVersion = '10.1.0'
     }
 }