diff --git a/all-spark-notebook/hooks/post_push b/all-spark-notebook/hooks/post_push
index 901e8b17..1f9f1914 100755
--- a/all-spark-notebook/hooks/post_push
+++ b/all-spark-notebook/hooks/post_push
@@ -18,7 +18,7 @@ INDEX_FILE="${GIT_SANDBOX}/Home.md"
 
 # Configure git so it can push back to GitHub.
 eval $(ssh-agent -s)
-ssh-add <(echo "$DEPLOY_KEY")
+ssh-add <(base64 -d <(echo "$DEPLOY_KEY"))
 ssh-add -l
 git config --global user.email "jupyter@googlegroups.com"
 git config --global user.name "Jupyter Docker Stacks"
diff --git a/datascience-notebook/hooks/post_push b/datascience-notebook/hooks/post_push
index 901e8b17..1f9f1914 100755
--- a/datascience-notebook/hooks/post_push
+++ b/datascience-notebook/hooks/post_push
@@ -18,7 +18,7 @@ INDEX_FILE="${GIT_SANDBOX}/Home.md"
 
 # Configure git so it can push back to GitHub.
 eval $(ssh-agent -s)
-ssh-add <(echo "$DEPLOY_KEY")
+ssh-add <(base64 -d <(echo "$DEPLOY_KEY"))
 ssh-add -l
 git config --global user.email "jupyter@googlegroups.com"
 git config --global user.name "Jupyter Docker Stacks"
diff --git a/minimal-notebook/hooks/post_push b/minimal-notebook/hooks/post_push
index 901e8b17..1f9f1914 100755
--- a/minimal-notebook/hooks/post_push
+++ b/minimal-notebook/hooks/post_push
@@ -18,7 +18,7 @@ INDEX_FILE="${GIT_SANDBOX}/Home.md"
 
 # Configure git so it can push back to GitHub.
 eval $(ssh-agent -s)
-ssh-add <(echo "$DEPLOY_KEY")
+ssh-add <(base64 -d <(echo "$DEPLOY_KEY"))
 ssh-add -l
 git config --global user.email "jupyter@googlegroups.com"
 git config --global user.name "Jupyter Docker Stacks"
diff --git a/pyspark-notebook/hooks/post_push b/pyspark-notebook/hooks/post_push
index 901e8b17..1f9f1914 100755
--- a/pyspark-notebook/hooks/post_push
+++ b/pyspark-notebook/hooks/post_push
@@ -18,7 +18,7 @@ INDEX_FILE="${GIT_SANDBOX}/Home.md"
 
 # Configure git so it can push back to GitHub.
 eval $(ssh-agent -s)
-ssh-add <(echo "$DEPLOY_KEY")
+ssh-add <(base64 -d <(echo "$DEPLOY_KEY"))
 ssh-add -l
 git config --global user.email "jupyter@googlegroups.com"
 git config --global user.name "Jupyter Docker Stacks"
diff --git a/r-notebook/hooks/post_push b/r-notebook/hooks/post_push
index 901e8b17..1f9f1914 100755
--- a/r-notebook/hooks/post_push
+++ b/r-notebook/hooks/post_push
@@ -18,7 +18,7 @@ INDEX_FILE="${GIT_SANDBOX}/Home.md"
 
 # Configure git so it can push back to GitHub.
 eval $(ssh-agent -s)
-ssh-add <(echo "$DEPLOY_KEY")
+ssh-add <(base64 -d <(echo "$DEPLOY_KEY"))
 ssh-add -l
 git config --global user.email "jupyter@googlegroups.com"
 git config --global user.name "Jupyter Docker Stacks"
diff --git a/scipy-notebook/hooks/post_push b/scipy-notebook/hooks/post_push
index 901e8b17..1f9f1914 100755
--- a/scipy-notebook/hooks/post_push
+++ b/scipy-notebook/hooks/post_push
@@ -18,7 +18,7 @@ INDEX_FILE="${GIT_SANDBOX}/Home.md"
 
 # Configure git so it can push back to GitHub.
 eval $(ssh-agent -s)
-ssh-add <(echo "$DEPLOY_KEY")
+ssh-add <(base64 -d <(echo "$DEPLOY_KEY"))
 ssh-add -l
 git config --global user.email "jupyter@googlegroups.com"
 git config --global user.name "Jupyter Docker Stacks"
diff --git a/tensorflow-notebook/hooks/post_push b/tensorflow-notebook/hooks/post_push
index 901e8b17..1f9f1914 100755
--- a/tensorflow-notebook/hooks/post_push
+++ b/tensorflow-notebook/hooks/post_push
@@ -18,7 +18,7 @@ INDEX_FILE="${GIT_SANDBOX}/Home.md"
 
 # Configure git so it can push back to GitHub.
 eval $(ssh-agent -s)
-ssh-add <(echo "$DEPLOY_KEY")
+ssh-add <(base64 -d <(echo "$DEPLOY_KEY"))
 ssh-add -l
 git config --global user.email "jupyter@googlegroups.com"
 git config --global user.name "Jupyter Docker Stacks"