diff --git a/labkey-api-sas/gradle/wrapper/gradle-wrapper.properties b/labkey-api-sas/gradle/wrapper/gradle-wrapper.properties
index a4f0001d..12d38de6 100644
--- a/labkey-api-sas/gradle/wrapper/gradle-wrapper.properties
+++ b/labkey-api-sas/gradle/wrapper/gradle-wrapper.properties
@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-6.4.1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.6.1-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
diff --git a/labkey-client-api/CHANGELOG.md b/labkey-client-api/CHANGELOG.md
index 8d623233..0e955e0c 100644
--- a/labkey-client-api/CHANGELOG.md
+++ b/labkey-client-api/CHANGELOG.md
@@ -1,5 +1,9 @@
 # The LabKey Remote API Library for Java - Change Log
 
+## version TBD
+*Released* :TBD
+* Add some missing dependency declarations 
+
 ## version 1.3.1
 *Released* : 18 September 2020
 
@@ -7,6 +11,7 @@
 * Identify target server with a `URI` instead of a `String`
 * Add support for Log4J 2
 
+
 ## version 1.3.0
 *Released* : 16 June 2020
 
diff --git a/labkey-client-api/build.gradle b/labkey-client-api/build.gradle
index 419430a3..64bdc292 100644
--- a/labkey-client-api/build.gradle
+++ b/labkey-client-api/build.gradle
@@ -63,13 +63,17 @@ group "org.labkey.api"
 version "1.4.0-SNAPSHOT"
 
 dependencies {
-    api "org.apache.httpcomponents:httpmime:${httpmimeVersion}"
+    implementation "org.apache.httpcomponents:httpmime:${httpmimeVersion}"
     api ("com.googlecode.json-simple:json-simple:${jsonSimpleVersion}")
             {
                 // exclude this because it gets in the way of our own JSON object implementations from server/api
                 exclude group: "org.json", module:"json"
             }
-    api "net.sf.opencsv:opencsv:${opencsvVersion}"
+    implementation "net.sf.opencsv:opencsv:${opencsvVersion}"
+    implementation "commons-logging:commons-logging:${commonsLoggingVersion}"
+    api "org.apache.httpcomponents:httpclient:${httpclientVersion}"
+    implementation "commons-codec:commons-codec:${commonsCodecVersion}"
+    api "org.apache.httpcomponents:httpcore:${httpcoreVersion}"
 }
 
 jar {
diff --git a/labkey-client-api/gradle.properties b/labkey-client-api/gradle.properties
index 0ad5bb9b..d9aedb3c 100644
--- a/labkey-client-api/gradle.properties
+++ b/labkey-client-api/gradle.properties
@@ -14,8 +14,12 @@ artifactoryPluginVersion=4.13.0
 bintrayPluginVersion=1.8.4
 gradlePluginsVersion=1.12.0
 
+commonsCodecVersion=1.10
+commonsLoggingVersion=1.2
 fluentHcVersion=4.3.5
 
+httpclientVersion=4.5.3
+httpcoreVersion=4.4.6
 httpmimeVersion=4.5.3
 
 jsonSimpleVersion=1.1
diff --git a/labkey-client-api/gradle/wrapper/gradle-wrapper.properties b/labkey-client-api/gradle/wrapper/gradle-wrapper.properties
index a4f0001d..12d38de6 100644
--- a/labkey-client-api/gradle/wrapper/gradle-wrapper.properties
+++ b/labkey-client-api/gradle/wrapper/gradle-wrapper.properties
@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-6.4.1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.6.1-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists