diff --git a/build.gradle.kts b/build.gradle.kts
index aafeb8e..95048ab 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -19,7 +19,7 @@ buildscript {
     }
 }
 
-version = "1.0.0-alpha"
+version = "1.0.1-alpha"
 group = "io.iohk.atala.prism"
 
 allprojects {
diff --git a/didcomm/didcomm.podspec b/didcomm/didcomm.podspec
index b02acb7..84e5005 100644
--- a/didcomm/didcomm.podspec
+++ b/didcomm/didcomm.podspec
@@ -1,6 +1,6 @@
 Pod::Spec.new do |spec|
     spec.name                     = 'didcomm'
-    spec.version                  = '1.0.0-alpha'
+    spec.version                  = '1.0.1-alpha'
     spec.homepage                 = ''
     spec.source                   = { :http=> ''}
     spec.authors                  = 'IOG'
diff --git a/didpeer/build.gradle.kts b/didpeer/build.gradle.kts
index 91d35fd..26b2a9c 100644
--- a/didpeer/build.gradle.kts
+++ b/didpeer/build.gradle.kts
@@ -99,7 +99,10 @@ kotlin {
     sourceSets {
         val commonMain by getting {
             dependencies {
-                implementation("io.iohk.atala.prism:multibase:1.0.0-alpha")
+                implementation("io.iohk.atala.prism:multibase:1.6.0-alpha")
+                implementation("io.iohk.atala.prism:varint:1.6.0-alpha")
+                implementation("io.iohk.atala.prism:base64:1.6.0-alpha")
+                implementation("io.iohk.atala.prism:base58:1.6.0-alpha")
                 implementation("org.jetbrains.kotlinx:kotlinx-serialization-json:1.4.1")
                 implementation("com.squareup.okio:okio:3.2.0")
             }
diff --git a/didpeer/didpeer.podspec b/didpeer/didpeer.podspec
index fb4cdf9..10c6d2b 100644
--- a/didpeer/didpeer.podspec
+++ b/didpeer/didpeer.podspec
@@ -1,6 +1,6 @@
 Pod::Spec.new do |spec|
     spec.name                     = 'didpeer'
-    spec.version                  = '1.0.0-alpha'
+    spec.version                  = '1.0.1-alpha'
     spec.homepage                 = ''
     spec.source                   = { :http=> ''}
     spec.authors                  = 'IOG'
diff --git a/didpeer/src/commonMain/kotlin/io.iohk.atala.prism.didcomm.didpeer/core/Multicodec.kt b/didpeer/src/commonMain/kotlin/io.iohk.atala.prism.didcomm.didpeer/core/Multicodec.kt
index b53faa5..0f064c9 100644
--- a/didpeer/src/commonMain/kotlin/io.iohk.atala.prism.didcomm.didpeer/core/Multicodec.kt
+++ b/didpeer/src/commonMain/kotlin/io.iohk.atala.prism.didcomm.didpeer/core/Multicodec.kt
@@ -1,5 +1,6 @@
 package io.iohk.atala.prism.didcomm.didpeer.core
 
+import io.iohk.atala.prism.apollo.varint.VarInt
 import io.iohk.atala.prism.didcomm.didpeer.VerificationMethodTypeAgreement
 import io.iohk.atala.prism.didcomm.didpeer.VerificationMethodTypeAuthentication
 import io.iohk.atala.prism.didcomm.didpeer.VerificationMethodTypePeerDID
@@ -13,15 +14,15 @@ enum class Codec(val prefix: Int) {
 fun toMulticodec(value: ByteArray, keyType: VerificationMethodTypePeerDID): ByteArray {
     val prefix = getCodec(keyType).prefix
     val byteBuffer = Buffer()
-    VarInt.writeVarInt(prefix, byteBuffer)
+    VarInt.write(prefix, byteBuffer)
     return byteBuffer.readByteArray().plus(value)
 }
 
 fun fromMulticodec(value: ByteArray): Pair<Codec, ByteArray> {
-    val prefix = VarInt.readVarInt(Buffer().write(value))
+    val prefix = VarInt.read(Buffer().write(value))
     val codec = getCodec(prefix)
     val byteBuffer = Buffer()
-    VarInt.writeVarInt(prefix, byteBuffer)
+    VarInt.write(prefix, byteBuffer)
     return Pair(codec, value.drop(2).toByteArray())
 }
 
diff --git a/didpeer/src/commonMain/kotlin/io.iohk.atala.prism.didcomm.didpeer/core/VarInt.kt b/didpeer/src/commonMain/kotlin/io.iohk.atala.prism.didcomm.didpeer/core/VarInt.kt
deleted file mode 100644
index 050327f..0000000
--- a/didpeer/src/commonMain/kotlin/io.iohk.atala.prism.didcomm.didpeer/core/VarInt.kt
+++ /dev/null
@@ -1,31 +0,0 @@
-package io.iohk.atala.prism.didcomm.didpeer.core
-
-import okio.Buffer
-
-// TODO: Move this implementation to its own Module and update it to follow these specifications
-//  https://github.com/multiformats/unsigned-varint
-object VarInt {
-    fun writeVarInt(value: Int, byteBuffer: Buffer) {
-        var value = value
-        while ((value and -0x80).toLong() != 0L) {
-            byteBuffer.writeByte(value and 0x7F or 0x80)
-            value = value ushr 7
-        }
-        byteBuffer.writeByte(value and 0x7F)
-    }
-
-    fun readVarInt(byteBuffer: Buffer): Int {
-        var value = 0
-        var i = 0
-        var b = 0
-        while (byteBuffer.size > 0 && byteBuffer.readByte().toInt().also { b = it } and 0x80 != 0) {
-            value = value or (b and 0x7F shl i)
-            i += 7
-            if (i > 35) {
-                throw IllegalArgumentException("Variable length quantity is too long")
-            }
-        }
-        value = value or (b shl i)
-        return value
-    }
-}
diff --git a/didpeer/src/commonTest/kotlin/io.iohk.atala.prism.didcomm.didpeer/TestCreateNumalgo0.kt b/didpeer/src/commonTest/kotlin/io.iohk.atala.prism.didcomm.didpeer/TestCreateNumalgo0.kt
index 8ef39c9..6156ce7 100644
--- a/didpeer/src/commonTest/kotlin/io.iohk.atala.prism.didcomm.didpeer/TestCreateNumalgo0.kt
+++ b/didpeer/src/commonTest/kotlin/io.iohk.atala.prism.didcomm.didpeer/TestCreateNumalgo0.kt
@@ -1,7 +1,6 @@
 package io.iohk.atala.prism.didcomm.didpeer
 
 import io.iohk.atala.prism.didcomm.didpeer.core.toJson
-import kotlin.test.Ignore
 import kotlin.test.Test
 import kotlin.test.assertEquals
 import kotlin.test.assertFails
@@ -32,9 +31,7 @@ class TestCreateNumalgo0 {
     }
 
     @Test
-    @Ignore // to be removed once Base64 has been fixed
     fun testCreateNumalgo0MalformedShortInceptionKey() {
-        // Issue with Base64
         for (key in shortKeys) {
             val ex = assertFails {
                 createPeerDIDNumalgo0(key)
diff --git a/didpeer/src/commonTest/kotlin/io.iohk.atala.prism.didcomm.didpeer/TestDemo.kt b/didpeer/src/commonTest/kotlin/io.iohk.atala.prism.didcomm.didpeer/TestDemo.kt
index ed6ea9f..186f37a 100644
--- a/didpeer/src/commonTest/kotlin/io.iohk.atala.prism.didcomm.didpeer/TestDemo.kt
+++ b/didpeer/src/commonTest/kotlin/io.iohk.atala.prism.didcomm.didpeer/TestDemo.kt
@@ -1,20 +1,9 @@
 package io.iohk.atala.prism.didcomm.didpeer
 
-import io.iohk.atala.prism.didcomm.didpeer.core.VarInt
-import okio.Buffer
 import kotlin.test.Test
-import kotlin.test.assertEquals
 
 class TestDemo {
 
-    @Test
-    fun moussaTest() {
-        val buffer = Buffer()
-        VarInt.writeVarInt(500, buffer)
-        val result = VarInt.readVarInt(buffer)
-        assertEquals(500, result)
-    }
-
     @Test
     fun testCreateResolvePeerDID() {
         val encryptionKeys = listOf(
diff --git a/didpeer/src/commonTest/kotlin/io.iohk.atala.prism.didcomm.didpeer/core/VarIntTests.kt b/didpeer/src/commonTest/kotlin/io.iohk.atala.prism.didcomm.didpeer/core/VarIntTests.kt
index 6fe5f6b..4c89b5a 100644
--- a/didpeer/src/commonTest/kotlin/io.iohk.atala.prism.didcomm.didpeer/core/VarIntTests.kt
+++ b/didpeer/src/commonTest/kotlin/io.iohk.atala.prism.didcomm.didpeer/core/VarIntTests.kt
@@ -1,25 +1,18 @@
 package io.iohk.atala.prism.didcomm.didpeer.core
 
+import io.iohk.atala.prism.apollo.varint.VarInt
 import okio.Buffer
 import kotlin.test.Test
 import kotlin.test.assertEquals
 
 class VarIntTests {
-    @Test
-    fun testVarInt() {
-        val origin = 1234774
-        val byteBuffer = Buffer()
-        VarInt.writeVarInt(origin, byteBuffer)
-        val fin: Int = VarInt.readVarInt(byteBuffer)
-        assertEquals(origin, fin)
-    }
 
     @Test
     fun testVarIntX25519() {
         val origin = Codec.X25519.prefix
         val byteBuffer = Buffer()
-        VarInt.writeVarInt(origin, byteBuffer)
-        val fin: Int = VarInt.readVarInt(byteBuffer)
+        VarInt.write(origin, byteBuffer)
+        val fin: Int = VarInt.read(byteBuffer)
         assertEquals(origin, fin)
     }
 
@@ -27,8 +20,8 @@ class VarIntTests {
     fun testVarIntED25519() {
         val origin = Codec.ED25519.prefix
         val byteBuffer = Buffer()
-        VarInt.writeVarInt(origin, byteBuffer)
-        val fin: Int = VarInt.readVarInt(byteBuffer)
+        VarInt.write(origin, byteBuffer)
+        val fin: Int = VarInt.read(byteBuffer)
         assertEquals(origin, fin)
     }