diff --git a/Dockerfile.centos7 b/Dockerfile.centos7
index 6daef934..809fbb7b 100644
--- a/Dockerfile.centos7
+++ b/Dockerfile.centos7
@@ -18,7 +18,7 @@ RUN ln -sf /usr/bin/cmake3 /usr/bin/cmake && \
     ln -sf /usr/bin/ctest3 /usr/bin/ctest
 
 # Download Bison
-RUN wget https://ftpmirror.gnu.org/gnu/bison/bison-3.8.2.tar.gz && \
+RUN wget https://mirrors.kernel.org/gnu/bison/bison-3.8.2.tar.gz && \
     tar -xvf bison-3.8.2.tar.gz && \
     rm bison-3.8.2.tar.gz
 
@@ -44,7 +44,8 @@ RUN source /opt/rh/devtoolset-11/enable && \
 
 # Download TCL
 RUN wget https://github.com/tcltk/tcl/archive/refs/tags/core-8-6-16.tar.gz -O tcl8.6.16-src.tar.gz && \
-    tar -xvf tcl8.6.16-src.tar.gz --strip-components=1 -C /tmp/tcl8.6.16 && \
+    mkdir -p tcl8.6.16 && \
+    tar -xvf tcl8.6.16-src.tar.gz -C tcl8.6.16 --strip-components=1 && \
     rm tcl8.6.16-src.tar.gz
 
 # Build TCL