diff --git a/conda-environment_py2.yaml b/conda-environment_py2.yaml
index 3fe9bb3f..6aa94ca6 100644
--- a/conda-environment_py2.yaml
+++ b/conda-environment_py2.yaml
@@ -13,7 +13,7 @@ dependencies:
 - htslib=1.3.1=0
 - peewee=2.8.0
 - pysam=0.9.1
-- python-dateutil=2.3
+- python-dateutil=2.7.3
 - samtools=1.3.1
 - selscan=1.1.0b
 - biopython=1.67
@@ -34,7 +34,7 @@ dependencies:
 - ncurses=5.9
 - openssl=1.0.2h
 - pandas=0.18.1
-- paramiko=1.16.0
+- paramiko=2.4.1
 - pip=8.1.2
 - pycrypto=2.6.1
 - pygments=2.1.3
diff --git a/conda-environment_py3.yaml b/conda-environment_py3.yaml
index 71b2513d..7af5a081 100644
--- a/conda-environment_py3.yaml
+++ b/conda-environment_py3.yaml
@@ -13,7 +13,7 @@ dependencies:
 - htslib=1.3.1=0
 - peewee=2.8.0
 - pysam=0.9.1
-- python-dateutil=2.3
+- python-dateutil=2.7.3
 - samtools=1.3.1
 - selscan=1.1.0b
 - biopython=1.67
@@ -34,7 +34,7 @@ dependencies:
 - ncurses=5.9
 - openssl=1.0.2h
 - pandas=0.18.1
-- paramiko=1.16.0
+- paramiko=2.4.1
 - pip=8.1.2
 - pycrypto=2.6.1
 - pygments=2.1.3
diff --git a/requirements-docs.txt b/requirements-docs.txt
index db99b81e..465fcab3 100644
--- a/requirements-docs.txt
+++ b/requirements-docs.txt
@@ -2,7 +2,6 @@ biopython==1.65
 pysam==0.8.2.1
 numpy==1.8.0
 pandas==0.16.0
-paramiko==1.15.2
 crypto==1.3.4
 boltons==0.6.3
 peewee==2.8.0
diff --git a/travis/install-conda.sh b/travis/install-conda.sh
index d31c12c1..cc22a409 100755
--- a/travis/install-conda.sh
+++ b/travis/install-conda.sh
@@ -44,7 +44,7 @@ else # if it does not exist, we need to install miniconda
     conda config --add channels bioconda
     conda config --add channels r
     conda config --add channels conda-forge
-    conda install -y -q conda=4.2 # pin to 4.2.* until this is fixed: https://github.com/conda/conda-build/issues/1666
+    conda install -y -q conda #=4.2 # pin to 4.2.* until this is fixed: https://github.com/conda/conda-build/issues/1666
     conda config --set auto_update_conda false
     conda install -y java-jdk==8.0.112
     conda install -y conda-build # needed to build recipe
@@ -52,4 +52,4 @@ else # if it does not exist, we need to install miniconda
     conda install -y -c conda-forge -f curl # the bioconda curl is broken as of 21 Feb 2017
 fi
 
-conda info -a # for debugging
\ No newline at end of file
+conda info -a # for debugging