diff --git a/ci/install-dependencies-linux.sh b/ci/install-dependencies-linux.sh
index 666af4999c5..dd8d3c41540 100755
--- a/ci/install-dependencies-linux.sh
+++ b/ci/install-dependencies-linux.sh
@@ -41,8 +41,7 @@ sudo apt-get update
 sudo apt-get install -y --no-install-recommends --no-install-suggests $packages
 
 # Install packages via conda
-conda update -n base -c conda-forge conda --solver libmamba
-conda install ${conda_packages} -c conda-forge --solver libmamba
+conda install ${conda_packages} -c conda-forge
 echo "${CONDA}/bin" >> $GITHUB_PATH
 
 # Remove pcre-config from conda's path so cmake won't find the conda's one
diff --git a/ci/install-dependencies-macos.sh b/ci/install-dependencies-macos.sh
index d2af804cb62..cc92e9b6652 100755
--- a/ci/install-dependencies-macos.sh
+++ b/ci/install-dependencies-macos.sh
@@ -42,8 +42,7 @@ fi
 brew install ${packages}
 
 # Install packages via conda
-conda update -n base -c conda-forge conda --solver libmamba
-conda install ${conda_packages} -c conda-forge --solver libmamba
+conda install ${conda_packages} -c conda-forge
 echo "${CONDA}/bin" >> $GITHUB_PATH
 
 # Remove pcre-config from conda's path so cmake won't find the conda's one
diff --git a/ci/install-dependencies-windows.sh b/ci/install-dependencies-windows.sh
index 507f7d1e7c9..5b3a5f6a1f5 100755
--- a/ci/install-dependencies-windows.sh
+++ b/ci/install-dependencies-windows.sh
@@ -48,8 +48,7 @@ if [ "$PACKAGE" = "true" ]; then
 fi
 
 # install more packages using conda
-$CONDA\\Scripts\\conda.exe update -n base -c conda-forge conda --solver libmamba
-$CONDA\\Scripts\\conda.exe install ${conda_packages} -c conda-forge --solver libmamba
+$CONDA\\Scripts\\conda.exe install ${conda_packages} -c conda-forge
 echo "$CONDA\\Library\\bin" >> $GITHUB_PATH
 echo "$CONDA\\Scripts" >> $GITHUB_PATH